Measured · refreshed monthly
Car dealers in St. Thomas, ON
The dealerships ChatGPT, Gemini and Google AI Mode send shoppers to when they ask where to buy a used car.
Arrow Motors is the AI-Ready Verified dealership in the London area: confirmed dealer licence, live inventory and lender rates on file.
We asked ChatGPT, Gemini and Google AI Mode 9 questions about where to buy a used car in St. Thomas. Across their 27 answers, they named 519 Cars most often, in 19, followed by St Thomas Auto Sales in 7 and South West Auto Group in 4.
- answers read
- 27
- dealers named
- 7
- named by all 3
- 1
- questions asked
- 9
Share of AI answers
ChatGPTGeminiGoogle AI Mode- 0119 of 27 answers519 Cars
- 027 of 27 answersSt Thomas Auto Sales
- 034 of 27 answersSouth West Auto Group
- 043 of 27 answersSilverstone Motors
- 053 of 27 answersSt. Thomas Nissan
- 062 of 27 answersSunset Auto Sales
All three agree on 1
Named by ChatGPT, Gemini and Google AI Mode.
- 02519 Cars
The full board
AI-Ready Verified dealerships first, then every dealership AI named, ordered by how many of the 27 answers named it. Verified means a confirmed dealer licence, live inventory and lender rates on file, which any dealership can do. Nothing here is bought, and nothing here is a rating.
AI-Ready Verified in the London area
- 01
- Dealer licence confirmed
- 55 used vehicles live
- Lender rates on file
Every dealership AI named
- 02519 Cars10924 Sunset Dr, St. Thomas, Ontario(519) 633-2020
Named by ChatGPT, Gemini and Google AI Mode. Named in 19 of 27 answers.
- 03St Thomas Auto Sales260 Talbot St, St. Thomas, Ontario(226) 781-9807
Named by ChatGPT and Gemini. Not named by Google AI Mode. Named in 7 of 27 answers.
- 04South West Auto Group55 Southdale Rd E, London, ON N6C 4X5, London, ON(519) 668-7111
Named by ChatGPT. Not named by Gemini and Google AI Mode. Named in 4 of 27 answers.
- 05Silverstone Motors700-4542 2365 Dundas St, London, Ontario(226) 700-4542
Named by Gemini. Not named by ChatGPT and Google AI Mode. Named in 3 of 27 answers.
- 06St. Thomas Nissan110 Edward Street, St. Thomas, ON(833) 546-3545
Named by Gemini and Google AI Mode. Not named by ChatGPT. Named in 3 of 27 answers.
- 07Sunset Auto Sales6500 Sunset Road, St. Thomas, Ontario(519) 631-1000
Named by ChatGPT and Google AI Mode. Not named by Gemini. Named in 2 of 27 answers.
Verified dealerships link to their own page. Every other dealership is named as AI named it; the claim link is for that dealership, not a link to it.
Used vehicles from AI-Ready Verified dealers near St. Thomas
Live inventory from the dealerships whose feed VIN Index checks, cheapest first. 55 at Arrow Motors in Aylmer.
| Photo | Vehicle | Dealer | Miles | Price | Payment |
|---|---|---|---|---|---|
 | 2010 Dodge Grand Caravan 293,457 km Arrow Motors, Aylmer | Arrow Motors Aylmer | 293,457 km | $1,500 | At the dealer’s rates |
 | 2015 Kia Soul 278,905 km Arrow Motors, Aylmer | Arrow Motors Aylmer | 278,905 km | $1,900 | At the dealer’s rates |
 | 2013 Hyundai Elantra GT 266,706 km Arrow Motors, Aylmer | Arrow Motors Aylmer | 266,706 km | $2,200 | At the dealer’s rates |
 | 2010 Buick Enclave 375,000 km Arrow Motors, Aylmer | Arrow Motors Aylmer | 375,000 km | $2,500 | At the dealer’s rates |
 | 2012 Ford Escape 251,612 km Arrow Motors, Aylmer | Arrow Motors Aylmer | 251,612 km | $2,750 | At the dealer’s rates |
 | 2013 Nissan Murano 210,000 km Arrow Motors, Aylmer | Arrow Motors Aylmer | 210,000 km | $4,150 | At the dealer’s rates |
 | 1994 Mercury TOPAZ 72,158 km Arrow Motors, Aylmer | Arrow Motors Aylmer | 72,158 km | $8,699 | At the dealer’s rates |
 | 2013 Honda Civic Sdn 233,718 km Arrow Motors, Aylmer | Arrow Motors Aylmer | 233,718 km | $9,725 | At the dealer’s rates |
Prices are the dealers' advertised prices. Payment estimates at each dealer's own lender rates are on the vehicle's page.
What the assistants said
“About 17 km east (roughly an 18-minute drive), Arrow Motors in Aylmer publishes detailed reconditioning work and costs online, offering excellent transparency for buyers who want to know exactly what’s been done before inspection (arrow-motors.ca).”
“519 Cars (10924 Sunset Dr) – Popular for a diverse pre-owned inventory (cars, trucks, and SUVs) and noted in local reviews for a helpful, low-pressure sales approach alongside flexible financing options. 519 Cars”
Questions about where to buy a used car in St. Thomas
How many dealerships in St. Thomas do AI assistants name for where to buy a used car?
7, across 27 answers in November 2026: 519 Cars, St Thomas Auto Sales, South West Auto Group, Silverstone Motors, St. Thomas Nissan, Sunset Auto Sales and Arrow Motors.
Which dealership do they name most?
519 Cars, in 19 of 27 answers, named by ChatGPT, Gemini and Google AI Mode. It was the first dealership mentioned in 14 of those.
Do ChatGPT, Gemini and Google AI Mode agree?
One dealership was named by all 3: 519 Cars.
Which dealership publishes live inventory and has lender rates on file?
Arrow Motors, the AI-Ready Verified dealership in the London area, with 55 used vehicles at Arrow Motors.
The questions we asked
- 01best used car dealership in St. Thomas
- 02car lots in St. Thomas
- 03good used car dealerships near St. Thomas
- 04independent used car dealers in St. Thomas
- 05most trustworthy used car dealer in St. Thomas
- 06reliable used car under $15,000 in St. Thomas
- 07used SUV under $20,000 in St. Thomas
- 08used family SUV with third row in St. Thomas
- 09used pickup truck for sale in St. Thomas
How this list is made
Every month we ask ChatGPT, Gemini and Google AI Mode the same questions about St. Thomas, the way a shopper would type them, and record which dealerships each answer names. A dealership counts once per answer. This list was measured on .
AI-Ready Verified dealerships are listed first. Verified is a standing any dealership can hold by confirming its dealer licence, publishing live inventory and putting its lender rates on file. Every other dealership is ordered by how many answers named it. No position is sold, and the counts are what the assistants said.
Run a dealership in St. Thomas?
The dealer AI names is the dealer who gets the lead.
6 dealerships on this board are named less often than 519 Cars. See every question AI names you for, and the pages winning the ones it doesn't.
More in St. Thomas
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