The Recommendation Share Index · Automotive · Fall 2026
Who’s in the driver’s seat?
How six AI answer engines recommend car brands, and which brands are winning the new recommendation economy. The answer engines have already picked their favorites: Toyota and Lexus together take the #1 slot in 46 of every 100 answers.
By Pete Blackshaw and Hank HudepohlBrandRank.AI Research·Data 1–31 October 2026
BrandRank.AI’s platform teases out the bias answer engines have toward individual brands. Recommendation Share measures that bias, showing how strongly a brand is recommended relative to others.
The platform assigns 10 points for first place, down to 1 point for tenth. It adds a brand’s points across the answers and divides the total by the maximum possible score. A score of 100% means the brand ranked first every time; 0% means it never made the top ten.
55.2%
Toyota's Recommendation Share
26of every 100 rankings put Toyota first (10 points each)
46place it in the top three (8 to 10 points)
27leave it out of the top ten (0 points)
Add up Toyota's points from every ranking, divide by the maximum it could have earned, and you get 55.2%.
In brief
Five numbers for the board deck.
69%
Honda is named in 69 of every 100 answers
But only ranked first in 2.
Named is not chosen.
45.6%
Combined, Toyota and Lexus hold the #1 slot
Toyota ranked first in 25.9% of all answers; Lexus in 19.8%.
11of 100
Recommendation Share earned by Detroit brands
Of every 100 points the answer engines awarded across all brands, Detroit brands earned 11. They sell 38 of every 100 vehicles.
+9.9
Porsche's Recommendation Share gain when the question is service
Lexus overtakes Toyota, 57.8% to 50.7%. Porsche is ranked first in more service answers than any other brand.
4.5×
Lexus earns 4.5 times its market share in the answer
Share of all points the answer engines awarded, divided by share of 2025 US sales. Ford earns 0.25×, Jeep 0.05×.
The takeaway track
Three minutes. Seven findings. One chorus.
Press play for the October findings set to music: who leads, where Detroit trails, and how service questions reshuffle the order. The lyrics follow along as it plays.
3:03
Lyrics
“Who’s in the driver’s seat? Who’s winning the race?”
Press play and the lyrics follow along here.
Read the full lyrics
Verse 1
Pulled off the interstate, phone up on the dash, Asked it for an SUV that wouldn't burn my cash. The engines handed back a list, ten names in a row, If your brand ain't on that shortlist, where's your buyer gonna go?
Pre-chorus
Toyota's riding shotgun, Lexus takes the wheel, Forty-six in every hundred get a number-one deal!
Chorus
Who's in the driver's seat? Who's winning the race? When AI makes the shortlist, who's taking first place? You can sell a million cars, have your name in lights, But if you don't make the answer, you're nowhere in sight!
Verse 2
Detroit sells four in ten, got the muscle and the pride, But just one in ten of the points on the recommendation side. Honda's on the list most days, but rarely number one, The race for recommendation has only just begun!
Pre-chorus
Tesla's top American, but tenth across the field, Five brands own seven in ten of the first-place wins they yield!
Chorus
Who's in the driver's seat? Who's winning the race? When AI makes the shortlist, who's taking first place? You can sell a million cars, have your name in lights, But if you don't make the answer, you're nowhere in sight!
Bridge
Ask about the service, watch the order rearrange, Lexus passes Toyota, Porsche is gaining range. Forty-four brands barely touch that number-one spot, The road to being recommended is tougher than you thought!
Final chorus
Who's in the driver's seat? Who's winning the race? When AI makes the shortlist, who's taking first place? The showroom's moving, and the future's coming fast, The brands that earn the answer are the brands built to last!
Outro
Know the truth!
The word for 2026
Named is not chosen.
Three findings from 25,800 AI answers. Recommendation Share is the headline number: who the answer engines put first when a buyer asks which car to consider, and how far that sits from who sells the most.
Presence in Top Recommendation Lists
69%
Honda appears in 69% of BrandRank’s generated top-ten rankings.
First-place recommendation
1.9%
But it is ranked first in fewer than 2%.
A brand can be highly visible without being the recommendation that wins. Every #1 slot Honda does not take goes to a competitor.
01 — The gap
Detroit sells the cars. The answer engines recommend someone else's.
Detroit 3 brands (Ford, GM and Stellantis's American marques) account for 38 of every 100 new vehicles sold in the US. Of every 100 points the answer engines awarded across all brands, Detroit brands earned 11.
Japanese brands earned 48 of every 100 points on 37 of every 100 sales.
No Detroit brand makes the top ten; Tesla is the highest-ranked American brand, at tenth.
Answer-to-market ratio: Lexus earns 4.5× its market share in the answer, Ford 0.25×, Chevrolet 0.16×, Jeep 0.05×.
Why it mattersOnly about half of car buyers stay with their brand when they buy again (51%1), and more than half say they plan to choose a different brand next time (53%2). So roughly half the market is up for grabs at every purchase, and the answer engines are already steering that choice toward the brands they rate highest.
Exhibit 1 · By brand originMeasured
Market Share vs. Share of Recommendation Points
Japanese brandsToyota, Honda, Subaru, Mazda + 61.3× over-recommended
Market Share
37.0%
Share of points
48.0%
German brandsPorsche, BMW, Mercedes, Audi + 22.7× over-recommended
Market Share
7.6%
Share of points
20.2%
Detroit 3 brandsFord, Chevrolet, Jeep, Ram + 60.28× under-recommended
Market Share
38.5%
Share of points
10.8%
Korean brandsHyundai, Kia, Genesis0.96× under-recommended
Market Share
11.2%
Share of points
10.7%
US EV nativesTesla, Rivian, Lucid1.4× over-recommended
Market Share
3.4%
Share of points
4.9%
Chinese brandsBYD, NIO, XPeng, Geely
Market Share
0.0%
Share of points
0.3%
Share of US new-vehicle sales, 2025Share of all points the answer engines awarded, Oct 2026
Source: BrandRank.AI Recommendation Share Index · sales share: CarPro/GlobalData FY2025, see External sources3. Ratio = share of points awarded ÷ share of sales.brandrank.ai
02 — Top-ten presence vs. first place
Honda frequently makes the top ten, but rarely takes first place.
Honda appears in 69% of BrandRank’s generated top-ten rankings, second only to Toyota, and ranks first in 1.9% of rankings. A frequent place in the top ten does not necessarily translate into a leading position.
BMW makes the top ten in 58% of rankings and ranks first in 2.5%; Hyundai in 51% and 2.8%; Kia in 40% and 0.7%; and Acura in 31% and 0.1%.
Among the rankings in which each brand makes the top ten, Toyota ranks first 35% of the time, Lexus 29%, Tesla 26% and Porsche 24%, compared with Honda at 3%, Kia at 2% and Acura at 0.4%.
Why it mattersA conventional mention tells you whether a brand was named in an answer. BrandRank’s platform goes further, teasing out an answer engine’s bias to generate a top-ten ranking. A brand can appear frequently in that ranking while rarely holding the leading position.
In the top tenRanked #1Right: of the rankings that include the brand, the share where it ranks #1. Calculated from unrounded figures.
Source: BrandRank.AI Recommendation Share Index, Automotive 2026 · n = 25,800 lists · 1–31 Oct 2026brandrank.ai
03 — The service verdict
Ask about service and the leader changes.
On the 41 questions about dealers, repairs, warranties and recalls, Lexus overtakes Toyota, 57.8% to 50.7%. Porsche gains 10 points and is ranked first more often than any other brand.
Gainers: Infiniti +10.1, Porsche +9.9, MINI +9.3, Subaru +8.0 points.
Fallers: Genesis −6.9 (its share halves), BMW −6.8, Mazda −5.5, Hyundai −5.5, Audi −5.4.
Audi finishes 24th of the 46 brands named in the service cut, with zero #1 placements across 7,052 service answers.
Why it mattersThe answer engines hold a separate opinion about how a brand behaves after the sale, and it is the opinion a buyer hears when they ask who will stand behind the car.
Exhibit 3 · All prompts → service promptsMeasured
Recommendation Share, before and after the question changes
57.8%
Lexus takes the lead on service
From 52.7% on all prompts; Toyota falls to 50.7%
+9.9
Porsche's gain, in points
Ranked first in 21.4% of service answers
0
Audi's #1 placements on service
24th of 46 brands across 7,052 service answers
BrandAll → serviceChange
Lexus52.7 →57.8+5.1
Toyota55.2 →50.7-4.6
Subaru38.5 →46.5+8.0
Honda44.2 →43.1-1.2
Porsche32.5 →42.4+9.9
BMW31.3 →24.5-6.8
Tesla17.9 →20.0+2.0
Mazda25.3 →19.8-5.5
Hyundai23.9 →18.4-5.5
MINI6.8 →16.0+9.3
Infiniti5.0 →15.1+10.1
Genesis14.1 →7.2-6.9
Audi9.1 →3.7-5.4
Source: BrandRank.AI Recommendation Share Index · all prompts n = 25,800 · customer-service prompts n = 7,052 · teal gains more than five points, red loses more than fivebrandrank.ai
Key insight
The shortlist is short. 71 of every 100 AI answers put one of five brands first: Toyota, Lexus, Porsche, Tesla or Subaru. 44 of the 57 brands are ranked first in fewer than one answer in 100.
Share of answer lists ranking the brand first 25,800 lists · six answer engines · 1–31 October 2026
The leaderboard
How the brands stack up.
Recommendation Share™ is position-weighted: a #1 placement earns 10 points, a #10 placement earns 1, and the total is divided by the maximum possible. Answer-to-market is the brand's share of all points the answer engines awarded divided by its share of 2025 US sales. Bar color fades with the score and is a reading aid, not a tested tier. Close scores, such as Toyota's 55.2% and Lexus's 52.7%, are close observed scores: this release does not claim statistical significance, tested ties or ±1-point precision.
15 of 57 brandsBrands with fewer than 100 appearances are flagged low confidence, a reporting threshold rather than a confidence interval. Answer-to-market shown where 2025 sales share is on record.
Answer engine profiles
Six answer engines, one method.
Each answer engine was asked the same 150 questions daily through October, and every answer list counts equally in the ranking. The one-line profiles are from The Answer Economy and describe how each answer engine tends to answer.
ChatGPT
The Confident Pragmatist
Names brands decisively when the evidence it finds is broad and consistent.
Claude
The Cautious Counselor
Prefers criteria over names unless corroboration is institutional; the most likely to add a caveat.
Gemini
The Diplomatic Educator
Balances options for a general audience and leans on brand-owned and institutional sources.
Perplexity
The Research Synthesizer
Citation-first; quick to reflect a new award, review or recall in its answer.
Meta AI
The Social Synthesizer
Weights social and review signals heavily.
Grok
The Contrarian Disruptor
More willing to depart from the consensus answer. Added to the Index in October.
Your brand
Find your brand. Then see what the Index doesn't show.
The number is public. Why you're losing it isn't. Pick a brand to see where it stands against the industry and the leader, choose one of three competitor views, then request your brand's cut against the three brands taking the rest.
Twenty brands a quarter · 14 slots left for Q4
Kick your brand's tires. Twenty minutes.
Your Recommendation Share on all prompts and on service, a read against three competitors you choose, and the name variants the answer engines use for you, from this wave's data. We send the finding before we ask for a meeting.
Loading the request form. If it doesn't appear, email research@brandrank.ai with your brand and three competitors.
No deck, no pitch. One finding, from your data, in your inbox.
Window sticker · The Recommendation Share IndexAutomotive · Fall 2026 edition
Honda
Rank 3 of 57 · all prompts
Recommendation Share
44.2%
Industry average 9.0% · leader 55.2% · +35.3 vs average
Presence in top ten
68.7%
of 25,800 top-ten rankings
Top ten → #1
3%
97 of every 100 rankings that include Honda give the #1 slot to someone else
Answer-to-market
1.08×
earns 1.08× the share of points its sales would predict
Service rank
#4
#4 ▼ 1 on service
At a glance. Often in the top ten, rarely first. Honda ranks #3 of 57 with a Recommendation Share of 44.2%. It appears in 68.7% of BrandRank’s top-ten rankings and ranks first in 1.9%, averaging position 4.6 when it appears. On the 41 customer-service questions it ranks #4 of 46 (43.1%, −1.2 points against all questions).
Who takes the rest · three ways to look at it
The brands one place above you take the points you lose. Toyota, Lexus, Subaru sit closest to Honda in the overall ranking.
#01Toyota55.2%ahead by 11.0
#02Lexus52.7%ahead by 8.4
#04Subaru38.5%behind by 5.7
Where these three take your points on service questions, the name variants the answer engines use for you, and your full ranking context are in the brand cut.
Short, citable answers to the questions buyers, analysts and answer engines ask about this edition.
What is Recommendation Share?
Recommendation Share is a position-weighted measure of how strongly AI answer engines recommend a brand. A brand earns 10 points for ranking first in an answer list and 1 point for ranking tenth; its points are summed and divided by the maximum possible score, so a brand ranked first in every answer would score 100%.
Which car brand do AI answer engines recommend most?
Toyota. In the Fall 2026 edition Toyota has the highest Recommendation Share at 55.2%, followed by Lexus (52.7%), Honda (44.2%), Subaru (38.5%) and Porsche (32.5%). BMW, Mazda, Hyundai, Mercedes-Benz and Tesla complete the top ten.
How often do Toyota and Lexus take the #1 spot?
Together they rank first in 46 of every 100 answer lists: Toyota in 25.9% and Lexus in 19.8% of the 25,800 lists. Five brands (Toyota, Lexus, Porsche, Tesla and Subaru) are ranked first in 71 of every 100 answer lists, and 44 of the 57 brands rank first in less than 1% of lists.
How do Detroit brands perform in AI answers?
Ford, General Motors and Stellantis brands account for 38 of every 100 US vehicle sales in 2025 but earn 11 of every 100 points the answer engines award. Tesla, ranked 10th, is the highest-ranked American brand. Ford earns 0.25 times its share of sales in points, Chevrolet 0.16 times and Jeep 0.05 times.
Is being named the same as being recommended?
No. Honda is named in 68.7% of answer lists, second only to Toyota, but ranks first in just 1.9% of them. Recommendation Share rewards position, so a brand that is mentioned often but rarely ranked first scores below its visibility.
What changes when the question is about service?
On 41 customer-service questions, Lexus (57.8%) moves ahead of Toyota (50.7%), and Porsche ranks first in 21.4% of service answers, more than any other brand. Audi places 24th of 46 brands on service and is never ranked first.
Which answer engines and questions does the Index cover?
Six answer engines (ChatGPT, Claude, Gemini, Perplexity, Meta AI and Grok) were asked the same 150 unbranded car-shopping questions between 1 and 31 October 2026, producing 25,800 answer lists and 237,986 ranked brand appearances across 57 brands.
Is the Index a survey of car buyers?
No. It is a directional snapshot of what publicly available AI answer engines said in response to a fixed set of questions in a stated window. It is not a customer survey and not a measure of vehicle quality. The questions likely favor established brands, and brand classification was AI-assisted.
Methodology & limitations
Read this as perception, not performance.
The Index measures what six publicly available AI answer engines said in response to a fixed set of questions in a stated window. It is not a customer survey and not a measure of vehicle quality. Everything below is what a reader needs to challenge the numbers, and it is longer than feels necessary on purpose.
01
What was asked
BrandRank.AI asked six AI answer engines 150 unbranded questions about car brands daily from 1 to 31 October 2026. The answer engines were ChatGPT, Claude, Gemini, Perplexity, Meta AI and Grok. Any question that named a specific brand was removed. The question set is the same as September's.
02
Themes
Vehicle quality and build, long-term reliability and durability, safety and recalls, performance and engineering, in-car technology and software, buying and dealership experience, warranty and transparency, and luxury versus mainstream value.
03
Answer lists
Each answer list is one question, asked of one answer engine on one day: 25,800 answer lists, which produced 237,986 ranked brand appearances across 57 car brands. A customer-service cut uses 41 of the questions and covers 7,052 answer lists.
04
Recommendation Share
Position-weighted. A brand earns 10 points for ranking first in a list and 1 point for ranking tenth. Its points are summed and divided by the maximum possible score. A brand ranked first in every answer would have 100%. Where this report says a group "earned X of every 100 points", it means that group's points as a share of all points the answer engines awarded across the 57 brands in the wave.
05
Top 10 Mention Share
The percentage of answer lists that name the brand anywhere in the top 10.
06
Name merging
Name variants, model names and sub-brand mentions are merged into one brand: Honda Civic counts as Honda, Lexus GX as Lexus. Combined entries are credited to the first-named brand, so "Honda / Acura" counts as Honda. A brand named more than once in one list is counted once, at its best position.
07
Who is ranked
Automakers and vehicle marques that sell new vehicles to consumers. The study excludes dealers, used-car retailers, review sites, non-automotive brands, and parent groups such as General Motors and Stellantis. Names appearing in fewer than 0.1% of lists were not classified and are left out.
08
Coverage and confidence
29 brands appear more than 1,000 times and 50 more than 100; every top-10 brand appears more than 8,000 times. Brands with fewer than 100 appearances are flagged low confidence. This is a reporting threshold, not a validated confidence interval.
09
What is not claimed
Repeated questions and answers across days and answer engines may be correlated, so answer-list and appearance counts are not independent observations. This release does not claim statistical significance, tested ties or ±1-point precision. Close scores are reported as close observed scores.
10
What it measures
A directional snapshot of AI answer engine responses, not a customer survey or a measure of vehicle quality. The questions are not tied to any country in wording and lean toward reliability, trust and after-sale support over price or performance. This likely favors established brands with strong reputations for dependability and dealer consistency, and likely disfavors newer, direct-sales, low-volume or niche brands. Branded-prompt detection, brand classification, name merging and country tagging are AI-assisted. Results will change as the answer engines change.
11
Right of reply
Factual errors are corrected and dated; material restatements go in the Journal of Changes with cause, scope and magnitude. Disputes: research@brandrank.ai.
In this release
What is measured
150 unbranded questions, six answer engines, one answer list per question per answer engine per day, 1–31 October 2026: 25,800 answer lists
237,986 ranked brand appearances across 57 car brands; 29 brands appear more than 1,000 times, 50 more than 100, and every top-10 brand more than 8,000 times
Recommendation Share, Top 10 Mention Share, #1 rate and average position for each brand
A customer-service cut of 41 questions and 7,052 answer lists, 46 brands named
Answer-to-market ratio against 2025 US sales share (external, sourced)
7 brands with fewer than 100 appearances flagged low confidence
Disclosure
Client relationship and independence
The question set is BrandRank.AI's tracked automotive set, run for Mercedes-Benz, a client account; Mercedes-Benz ranks 9th in this release. No brand paid to be included, reviewed its score before publication, or shaped the question themes. Self-funded; no answer-engine provider is a sponsor.
Wording to be confirmed by Pete and Hank before external use
Combined names
How merged and combined entries are treated
Name variants, model names and sub-brand mentions are merged into one brand: Honda Civic counts as Honda, Lexus GX as Lexus. Combined entries are credited to the first-named brand, so "Honda / Acura" counts as Honda and "Ford / Lincoln" as Ford. If one list names the same brand more than once, it is counted once, at its best position.
How to cite
BrandRank.AI (2026). The Recommendation Share Index: Automotive, Fall 2026 edition. Blackshaw, P. and Hudepohl, H. https://www.brandrank.ai/recommendation-share-index-auto
Reuse
Every exhibit is yours to republish
Charts are licensed CC BY 4.0. Use any exhibit if you credit "BrandRank.AI Recommendation Share Index" and link to this page. Do not edit the data. Brands may not cite the Index in advertising without a written license and review of the claim.
Journal of changes · v1.0 · 2 Nov 2026 · October wave; Grok added; service cut 41 questions
External sources
Figures on this page that do not come from the Index
Brand loyalty 51.1%: S&P Global Mobility, "Automotive Brand Loyalty Rates Show Mixed Results", US new-vehicle loyalty rate through June 2025, published 28 August 2025.
53% plan to switch brands: Deloitte, 2026 Global Automotive Consumer Study, US respondents, fielded October–November 2025 (28,000+ consumers in 27 countries), published 7 January 2026.
Share of 2025 US new-vehicle sales by brand and origin (Exhibit 1, answer-to-market): CarPro / GlobalData full-year 2025 brand sales; Mercedes-Benz estimated. Denominator table under review before external release.
AI outputs vary. Generative AI systems are non-deterministic and change over time, by model version, location, account history and phrasing. Every figure is a directional snapshot from repeated sampling. Repeated questions and answers across days and answer engines may be correlated, so answer-list and appearance counts should not be treated as independent observations. This release does not claim statistical significance, tested ties or ±1-point precision. An individual user may receive answers that differ from those reported here.
Perception, not performance. The questions lean toward trust, reliability and after-sale behavior, which likely favors established brands. They measure brand perception in AI answers, not shopper intent, vehicle quality or customer-survey results, and the results will change as the answer engines change.
Opinion and interpretation. Rankings, tiers and commentary reflect BrandRank.AI's analytical opinion based on the disclosed data and methodology, and are subject to change as new data is collected. No endorsement; no affiliation. BrandRank.AI is not affiliated with, sponsored by or endorsed by any vehicle manufacturer or AI provider named here. Inclusion does not constitute endorsement. Trademarks belong to their owners and are used for identification only. No warranty. This report is directional and provided for information; BrandRank.AI accepts no liability for decisions made in reliance on it.
Know the Truth. Own the Answer.
Kick your brand's tires.
Six answer engines have already answered "which car should I buy". See where you landed and who is taking your share.
