I asked ChatGPT, Claude, and Gemini how to sell my car—here’s which AI gave the best advice

Many of my colleagues here at How-To Geek are experts on artificial intelligence and how to incorporate it into your everyday life. Some of my colleagues have shared ideas for making Gemini a more functional tool or using Claude to help with Raspberry Pi projects that come up on a whim. After listening to them speak about AI during our team meetings, I decided to use it myself.

I recently asked ChatGPT, Claude, and Gemini when the best time to sell a vehicle would be. With my query, I presented each with a hypothetical 2021 Toyota RAV4 XLE Premium with about 60,000 miles. I tried to make it as difficult as possible, asking about the strategic timing of the sale, the ROI for me (if any) should I do a 60,000-mile service beforehand, and even the hoops involved in selling a Michigan-registered car to a buyer across the border in Ohio.

While all three offered plenty of suggestions for selling a vehicle successfully, their approaches differed. Gemini seemed to act as an analyst, ChatGPT a specialist, and Claude as a counselor. Personally, I enjoyed Claude’s longer responses that provided plenty of additional context and insight, but there is also something to be said for the bullet-point, summarized lists provided by ChatGPT and Gemini.

Which AI assistant you use might come down to a matter of personal preference, but if you plan to use one (or a combination of them) to sell your car, here is how they compare.

My query for ChatGPT, Claude, and Gemini

I tried to make it as complex as possible while still being realistic

Credit: Carl Anthony | How-To Geek

Here is what I typed into ChatGPT, Claude, and Gemini regarding my fictional 2021 Toyota RAV4:

I need help determining the best time to sell my vehicle as a private seller, not trading it into the dealer. I am in the Detroit, Michigan area, but I do have friends and family in the Cleveland area. I could sell it there if I can get more money, but I would need to know whether there are any hoops I need to jump through to sell a vehicle registered in Michigan to someone in Ohio, or if it would be better to just try and sell it locally.

Here was the data I provided to each AI assistant regarding my pretend 2021 Toyota RAV4 XLE Premium:

Mileage: 58,931.

Engine: 2.5-liter four cylinder.

Transmission: Automatic (eight-speed).

Drivetrain: AWD with Multi-Terrain Select drive modes.

Safety Features: Toyota Safety Sense 2.0 package and trailer-sway control.

Option Packages: XLE premium package that came with a moonroof and the all-weather package that came with floor and cargo mats.

Wheels: 19-inch.

Accessories: Thule Caprock roof rack (paid about $1,000 for it plus installation; I cannot exactly remember how much it was).

Here were the specific questions I asked ChatGPT, Claude, and Gemini:

• When is the best time to sell my Toyota RAV4 based on the current market?
• I am near 60,000 miles. Should I do any major service work before I sell it? Can I ask for more money if I do a 60,000-mile service at my local dealer, or does that not matter?
• Should I leave the roof rack on or remove it and try to sell it separately?
• How can I ensure my safety when meeting a potential buyer who wants to see my RAV4 before I sell it?
• If I were to take the money from selling my RAV4, what vehicles have the best resale value that I could put a down payment on?

Base Trim Engine

2.5L Inline-4 Gas

Base Trim Transmission

8-Speed Automatic

Base Trim Drivetrain

Front-Wheel Drive

Question #1: Best time to sell

Moving season might bring interested buyers

Credit: Toyota

All three AI assistants pointed to springtime as a “golden window” for selling a vehicle like my hypothetical RAV4. Here is what they said specifically:

• Claude: Advised listing the RAV4 before the summer in order to provide enough time before the arrival of new 2027 models in dealer showrooms.

• Gemini: Emphasized that the 2021 model year is in the sweet spot (three to six years old) where depreciation has slowed, but the connectivity features inside the vehicle still feel current.

As for trying to sell my hypothetical RAV4 in either Michigan or Ohio, and which location might get me the most money, ChatGPT advised that there was no real advantage to traveling across state lines from Detroit.

However, if I wanted to anyway, Gemini detailed the legal requirements with Claude reminding me I would need a notarized signature on the title for out-of-state transfers in Ohio, whereas Michigan does not have that requirement.

Question #2: Does the 60,000-mile service matter

Values from Gemini seemed high

Credit: Toyota

Every manufacturer provides a specific maintenance schedule tailored to your vehicle, though 60,000 miles is a common general interval for major service items. Since my hypothetical RAV4 had 58,931 miles on the odometer, I asked whether I should have any special service work done before selling. Here is what each said:

• Gemini: Stated that a Toyota vehicle in good condition with a documented service history can boost resale value by $2,000 to $4,000 over a vehicle with no records.

• ChatGPT: Offered a more conservative reality check against Gemini, suggesting that I would not get a dollar-for-dollar return on a big service package.

• Claude: Advised that since a potential buyer might fear the cost of a larger 60,000-mile service, doing it now removes “negotiating ammunition” and builds instant trust.

During my years in automotive retail, on both the sales and service sides of the dealership, my advice would be to skip the 60,000-mile service. I would, of course, let any potential buyer know it was due, but I would not go out of my way to perform it on a vehicle I planned to sell. If that meant I cut the new owner a little bit of a deal on the asking price, so be it.

Dimensions

59 x 52.4 x 5 inches

Material

Aluminum

Load capacity up to 330 lbs. with a low-profile design that redirects airflow to reduce noise and drag, improving fuel economy. 

Question #3: Should the Thule roof rack stay or go

Responses varied by AI assistant

Credit: Toyota

My fictional 2021 RAV4 was equipped with a Thule Caprock roof rack, which I found on Toyota Parts Center Online for an MSRP of $1,059 (though I told each AI assistant I didn’t remember what I paid, which could be true, assuming I got the RAV4 new in 2021). Here is what each of them said:

• ChatGPT: Recommended removing it, noting that accessories typically return less than 50% of their cost when left with the vehicle.

• Claude: Encouraged leaving it on because it could appeal to the enthusiast demographic most likely to buy a RAV4. If I were to sell it, Claude suggested listing it on Facebook Marketplace or Craigslist between $400 and $600.

• Gemini: Took a different approach by suggesting it was up to me. I could leave the Thule rack on to help the RAV4 stand out to potential buyers, or remove it and sell it separately. Gemini recommended selling it for no more than $600.

Most likely, I would remove the roof rack and sell it separately, or gift it to a friend if they had a RAV4.

Question #4: How to meet buyers in a safe way

Your city may have designated zones

While all three AI assistants recommended meeting a potential buyer in a public place, their specific guidance on vetting that person and securing payment varied.

• ChatGPT: Provided a detailed checklist which included riding along during the test drive, inviting a friend or family member to come with me, and verifying all funds at the bank.

• Claude: Offered similar safety tips as ChatGPT, although suggested I screen buyers over the phone first. Claude also suggested using a Google Voice number rather than my personal number.

• Gemini: Since I generated my query in Detroit, Gemini recommended meeting at one of Michigan’s Safe Exchange Zones, well-lit public areas where citizens can conduct everything from selling items like a car to child custody transfers.

The advice given by all three AI assistants was excellent. Since I live in Michigan, I would most likely take Gemini up on its suggestion.

Question #5: Which vehicles hold their value

Toyota was the leader, although there was one surprise

Credit: Toyota

If the goal of selling my fictional 2021 RAV4 was to use the money as a down payment on something new with good resale value, all three AI assistants said I should stay within the Toyota family.

• Gemini: Highlighted the Tacoma and stated it had a 63% resale value at the five-year mark, with the 4Runner not far behind, holding 58% of its original value after five years.

• ChatGPT: Also suggested staying in the Toyota lineup with another RAV4, but recommended a Subaru Forester as a good pick if I wanted to change brands.

• Claude: Cited data showing the 4Runner can retain up to 64.4% of its value after five years, which is different from the resale value data Gemini showed me. Like ChatGPT, however, Claude seemed convinced that getting another RAV4 was my best bet, though it threw a nice curveball with a Ford Bronco recommendation.

Each AI assistant did quite well, although I liked Claude the best

After running this experiment, all three AI assistants appear accurate and trustworthy, even though they sometimes differ in their advice on how to best sell a vehicle.

One thing I found interesting was how Claude seemed to draft its responses like a term paper, whereas ChatGPT and Gemini used a style akin to bullet-point lists. Overall, I think I liked Claude’s approach the best, but the faster summaries of the other two were easy to digest.

If you plan to sell your vehicle privately, maybe give one or all three of these AI assistants a try. You could start with Claude to determine your strategy, use Gemini to verify the legalities and any numerical data, and then let ChatGPT build your pre-sale and post-sale checklist.

Selling a vehicle privately has always required a bit of legwork and a healthy dose of caution, but these days, the process is a little easier thanks to advancements in AI.