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

No luxury brand owns the machine's answer — thirty names split the shelf, and the leader holds barely one place in eight.

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

Lexus takes the most places on the shelf while being named in fewer buyer questions than either German rival — it converts a narrower set of occasions into more picks, and reaches the top of the list with all four models behind it. That is depth, not spread: where Lexus is considered, it is the answer rather than an option.

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

Mercedes-Benz is named in all but one of the fifteen buyer questions, by every model, and reaches the top of the list — the widest presence of any luxury name. It is the default the machines reach for across almost every motive, from status to comfort to resale, but it finishes marginally behind Lexus on picks, meaning it is everywhere and first less often than its footprint implies.

3. BMWchosen 33× / 10.3% / 4/4 models

BMW matches Mercedes-Benz on reach — fourteen of the fifteen questions, all four models, top of the list at its best — yet turns that same presence into roughly a fifth fewer picks. It is being recalled as the third name in a German trio rather than the reason for the recommendation, which is a positioning problem, not a visibility 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
30brands chosen in total
13.2%largest holding / Lexus
The takeaway
Luxury is being answered as a set, not a ranking: the top three together account for roughly a third of every recommendation, and fifteen names we don't track are still taking one choice in six. That means share here is won by showing up in more buying situations, not by being the most famous badge — Lexus, Mercedes-Benz and BMW are separated by a handful of picks, and Bentley proves a brand outside the tracked set can out-earn most of the ones inside it on a narrow slice of intent. The shelf is contestable in a way most luxury CEOs would not assume from their share of the physical market.
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 #2Lucid — chosen 7x (2.2%) / 4/4 models (Cl, GPT, Gm, Px) / 4 of 15 questions / best rank #1Cadillac — 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 #5Range 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 #3Mercedes-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 #56 named twice4% of the shelf6 named once2% of the shelfLexus / 42Mercedes-Benz / 41BMW / 33Genesis / 31Lincoln / 4Ferrari / 5Cadillac / 6Lucid / 7Infiniti / 7Tesla / 8Rolls-Royce / 13Bentley / 13Volvo / 15Acura / 18Audi / 22Porsche / 3030CHOSEN / 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 30 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—
13Lucid72.2%4/4#1—
14Cadillac61.9%3/4#3—
15Ferrari51.6%4/4#1—
16Lincoln41.3%2/4#2—
17Kia30.9%3/4#5—
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—
23Mercedes-Maybach20.6%2/4#3—
24Rivian20.6%2/4#6—
25Buick10.3%1/4#4—
26Honda10.3%1/4#5—
27Jaguar10.3%1/4#3—
28Lamborghini10.3%1/4#4—
29Maserati10.3%1/4#7—
30Polestar10.3%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.