ARA Automotive (Lux) / Q3 2026 / Full Shelf Diagnostic

Nobody owns luxury in the machines — the leader takes barely one choice in eight, and it gets there by winning fewer questions, not more.

Why these three lead the shelf
1. Lexuschosen 42× / 13.2% / 4/4 models

It appears in the fewest questions of the three — 12 of 15 — and still gets picked more than anyone, which means it converts almost every conversation it enters. All four models will put it first, so its reputation for quality of ownership is settled, not contested.

2. Mercedes-Benzchosen 41× / 12.9% / 4/4 models

It shows up in 14 of 15 questions across all four models and reaches the top of the list — it is the reference point the machines reach for when the question says luxury. That breadth without the leading pick count is the tell: it is named in every conversation but is not always the answer.

3. BMWchosen 33× / 10.3% / 4/4 models

Same reach as Mercedes — 14 of 15 questions, all four models, capable of ranking first — but eight fewer picks, so it is present in the conversation more often than it is decisive in it. It is the third name on the list rather than the first thing said, which is a closeable gap, not a structural one.

About the AI Shelf
The AI Shelf is the short list of names an AI assistant gives when someone asks what to buy. ChatGPT, Claude, Gemini and Perplexity answer the questions a real buyer asks, and every brand they name lands on the shelf. Your customer sees it before they see yours, and nobody can pay for position on it.
Each time a model chooses a brand over every other brand it could have named, that counts once. 319 choices were made here. Slice size is share of all of them.
84.3%held by the 15 audited brands
32brands chosen in total
13.2%largest holding / Lexus
The takeaway
319 choices spread across 32 brands with the leader at 13.2% means there is no default luxury answer waiting to be dislodged — the models are still deciding, and share is buyable. The pattern to copy is Lexus: depth in the questions you genuinely own beats a name that surfaces everywhere and converts nowhere. Roughly one choice in six goes to brands outside the tracked set, with Bentley alone taking 13, so the frame the models are working with is wider than the German/Japanese core assumes.
ARA Lexus — chosen 42x (13.2%) / 4/4 models (Cl, GPT, Gm, Px) / 12 of 15 questions / best rank #1Mercedes-Benz — chosen 41x (12.9%) / 4/4 models (Cl, GPT, Gm, Px) / 14 of 15 questions / best rank #1BMW — chosen 33x (10.3%) / 4/4 models (Cl, GPT, Gm, Px) / 14 of 15 questions / best rank #1Genesis — chosen 31x (9.7%) / 4/4 models (Cl, GPT, Gm, Px) / 12 of 15 questions / best rank #1Porsche — chosen 30x (9.4%) / 4/4 models (Cl, GPT, Gm, Px) / 10 of 15 questions / best rank #1Audi — chosen 22x (6.9%) / 4/4 models (Cl, GPT, Gm, Px) / 11 of 15 questions / best rank #1Acura — chosen 18x (5.6%) / 4/4 models (Cl, GPT, Gm, Px) / 8 of 15 questions / best rank #1Volvo — chosen 15x (4.7%) / 4/4 models (Cl, GPT, Gm, Px) / 7 of 15 questions / best rank #2Bentley — chosen 13x (4.1%) / 4/4 models (Cl, GPT, Gm, Px) / 5 of 15 questions / best rank #2Rolls-Royce — chosen 13x (4.1%) / 4/4 models (Cl, GPT, Gm, Px) / 4 of 15 questions / best rank #1Tesla — chosen 8x (2.5%) / 4/4 models (Cl, GPT, Gm, Px) / 5 of 15 questions / best rank #1Infiniti — chosen 7x (2.2%) / 4/4 models (Cl, GPT, Gm, Px) / 4 of 15 questions / best rank #2Cadillac — chosen 6x (1.9%) / 3/4 models (Cl, GPT, Px) / 5 of 15 questions / best rank #3Ferrari — chosen 5x (1.6%) / 4/4 models (Cl, GPT, Gm, Px) / 2 of 15 questions / best rank #1Lincoln — chosen 4x (1.3%) / 2/4 models (Cl, Px) / 3 of 15 questions / best rank #2Kia — chosen 3x (0.9%) / 3/4 models (Cl, GPT, Px) / 2 of 15 questions / best rank #5Lucid — chosen 3x (0.9%) / 2/4 models (Cl, GPT) / 3 of 15 questions / best rank #2Range Rover — chosen 3x (0.9%) / 3/4 models (Cl, Gm, Px) / 2 of 15 questions / best rank #1Aston Martin — chosen 2x (0.6%) / 2/4 models (Gm, Px) / 1 of 15 questions / best rank #4Bugatti — chosen 2x (0.6%) / 2/4 models (Cl, Gm) / 2 of 15 questions / best rank #3Hyundai — chosen 2x (0.6%) / 2/4 models (Gm, Px) / 1 of 15 questions / best rank #2Land Rover — chosen 2x (0.6%) / 1/4 models (Cl) / 2 of 15 questions / best rank #3Lucid Air — chosen 2x (0.6%) / 2/4 models (GPT, Px) / 1 of 15 questions / best rank #1Lucid Motors — chosen 2x (0.6%) / 2/4 models (GPT, Gm) / 1 of 15 questions / best rank #1Mercedes-Maybach — chosen 2x (0.6%) / 2/4 models (GPT, Gm) / 2 of 15 questions / best rank #3Rivian — chosen 2x (0.6%) / 2/4 models (Cl, Gm) / 2 of 15 questions / best rank #6Buick — chosen 1x (0.3%) / 1/4 models (Px) / 1 of 15 questions / best rank #4Honda — chosen 1x (0.3%) / 1/4 models (Px) / 1 of 15 questions / best rank #5Jaguar — chosen 1x (0.3%) / 1/4 models (Px) / 1 of 15 questions / best rank #3Lamborghini — chosen 1x (0.3%) / 1/4 models (Cl) / 1 of 15 questions / best rank #4Maserati — chosen 1x (0.3%) / 1/4 models (Cl) / 1 of 15 questions / best rank #7Polestar — chosen 1x (0.3%) / 1/4 models (Cl) / 1 of 15 questions / best rank #58 named twice5% of the shelf6 named once2% of the shelfLexus / 42Mercedes-Benz / 41BMW / 33Genesis / 31Lincoln / 4Ferrari / 5Cadillac / 6Infiniti / 7Tesla / 8Rolls-Royce / 13Bentley / 13Volvo / 15Acura / 18Audi / 22Porsche / 3032CHOSEN / CHOSEN 319 TIMESaudited brands hold 84.3%
In the current ARA IndexNot currently in the ARA Index — shaded by rank, darkest = chosen least often
All 32 chosen — the annotated ranking
#NameChosenShareModelsBestΔ
1Lexus4213.2%4/4#1—
2Mercedes-Benz4112.9%4/4#1—
3BMW3310.3%4/4#1—
4Genesis319.7%4/4#1—
5Porsche309.4%4/4#1—
6Audi226.9%4/4#1—
7Acura185.6%4/4#1—
8Volvo154.7%4/4#2—
9Bentley134.1%4/4#2—
10Rolls-Royce134.1%4/4#1—
11Tesla82.5%4/4#1—
12Infiniti72.2%4/4#2—
13Cadillac61.9%3/4#3—
14Ferrari51.6%4/4#1—
15Lincoln41.3%2/4#2—
16Kia30.9%3/4#5—
17Lucid30.9%2/4#2—
18Range Rover30.9%3/4#1—
19Aston Martin20.6%2/4#4—
20Bugatti20.6%2/4#3—
21Hyundai20.6%2/4#2—
22Land Rover20.6%1/4#3—
23Lucid Air20.6%2/4#1—
24Lucid Motors20.6%2/4#1—
25Mercedes-Maybach20.6%2/4#3—
26Rivian20.6%2/4#6—
27Buick10.3%1/4#4—
28Honda10.3%1/4#5—
29Jaguar10.3%1/4#3—
30Lamborghini10.3%1/4#4—
31Maserati10.3%1/4#7—
32Polestar10.3%1/4#5—
ARA / ALGORITHM READINESS ANALYSIS / ARACO.AI — 4 models x 15 buyer questions, top 7 answers per cell. MEASURING AI TRUST IN BRANDS.
Naming variants merged before counting: none. Query counts for merged brands are upper bounds.