What Ten Weeks of ChatGPT Ads Taught Us About Selling Cars

When OpenAI opened ChatGPT to advertisers this year, every dealer asked the same question: does it work for car stores? Plenty of people had opinions, but we wanted real data. In August, our dedicated team for managing ChatGPT Ads for car dealers launched ChatGPT ads for one of our clients, Findlay Honda Henderson in Henderson, Nevada, and measured it the way we measure everything: from the budget to the sold car. 

The Store and the Goal 

Findlay Honda Henderson competes with the Las Vegas dealers for the same shoppers. The goal was simple: reach shoppers while they're asking ChatGPT where to buy, and send them to the store's offers. We set a $3,000 monthly budget and reviewed the campaign with the store every week in ClickIQ™, our marketing intelligence platform. 

What We Built 

Three ad groups, each with 13 to 17 headline variations so we could learn which messages earned the click: 

• Brand and offer: the store's name with its current monthly lease offer on select new Hondas. 

• Dealer and market: lease and low-APR offers aimed at shoppers looking for a Honda dealer in the metro. 

• Skip the city: a value message inviting city shoppers to make the short drive and save.

The Results

Source: ClickIQ, store's ChatGPT Performance report. Cost per conversion is Spend divided by conversions. October is a partial month. 

What We Learned 

1. Local beats generic, every time. The headlines that named the market or spoke like a local earned the clicks. "Premier Las Vegas Area Dealer" was the top performer in October, with 13 clicks from 2,728 impressions (0.48% CTR), and "Hit the Jackpot Today," a line that only works in Vegas, reached 0.78%. Generic lines like "Explore Our Honda Lineup" and "Welcome to the Difference" earned no clicks at all. Shoppers ask ChatGPT where to buy near them, so the ad has to answer that question. 

2. Clicks cost more than the forecasts, but they convert. The industry's quoted starting bids are $3 to $5 a click. We paid about $11. But 4.4% of those clicks converted, against the roughly 3% we expect from website traffic overall. A shopper who clicks from a ChatGPT conversation has usually done their research already. 

3. Costs came down as the campaign learned. The cost of reaching a thousand shoppers fell from $40 in August to $30 in October, and cost per conversion fell with it, from $306 to $148. 

4. Clicks aren't the finish line. ChatGPT ads report impressions, clicks, and conversions. They don't tell you whether that shopper set an appointment, showed up, or bought. That's why we match every lead to the store's CRM, and it's the number that decides whether ChatGPT earns more budget. 

"Everybody's asking whether dealers should buy ChatGPT ads. We stopped guessing and ran them. My answer is yes, as a test, in one market, measured all the way to the sold car." 

Bo White, Founder and Chief Executive Officer. 

What We'd Tell Any Dealer 

• Start with a fixed test budget funded from waste in your current media plan, not from paid search.

• Write for the local question: name your market and give a reason to choose your store.

• Rotate a dozen or more headlines and cut the losers every week.

• Judge it on cost per sale, not cost per click.

The Bottom Line: ChatGPT Ads Are Worth Testing

ChatGPT advertising is opening a new opportunity for automotive dealers to connect with shoppers during the research and decision-making process. Our ten-week test with Findlay Honda Henderson showed that while clicks may cost more than traditional digital advertising, the quality of traffic and conversion potential make this an emerging channel worth exploring.

The biggest takeaway? Success isn't about being first to advertise on ChatGPT. It's about reaching the right shoppers with relevant, localized messaging and measuring the results that matter.

As AI continues to change how consumers research vehicles and choose dealerships, dealers who test, learn, and adapt their digital marketing strategies will be better positioned to compete.

At Click Here Digital, we're focused on helping dealerships navigate this shift with real-world testing, smarter optimization, and transparent performance reporting. Because at the end of the day, it's not about how many clicks an ad generates. It's about how many customers those clicks bring through your doors. Reach out to Click Here Digital to learn more ChatGPT Ads and how our team can help you.