Car brands: the sites AI assistants read before they name one
40 answers from ChatGPT and Claude about car brands in 20 countries, asked with web search on. For each site, the share of answers that read it and the share that cited it as the source of a brand.
- Answers
- 40
- ChatGPT: searches per answer
- 3.2
- Claude: searches per answer
- 1.0
- Answers that read reddit.com
- 28%
- Answers that read youtube.com
- 28%
The sites read most for car brands
Every country together. Under each assistant, the share of its own answers.
| Site | Read | Cited | ChatGPT | Claude |
|---|---|---|---|---|
| wikipedia.orgChatGPT 60% · Claude 0% | 30% | 0% | 60% | 0% |
| reddit.comChatGPT 55% · Claude 0% | 28% | 0% | 55% | 0% |
| youtube.comChatGPT 55% · Claude 0% | 28% | 0% | 55% | 0% |
| cadenaser.comChatGPT 40% · Claude 0% | 20% | 0% | 40% | 0% |
| as.comChatGPT 35% · Claude 0% | 18% | 0% | 35% | 0% |
| kia.comChatGPT 30% · Claude 0% | 15% | 13% | 30% | 0% |
| adac.deChatGPT 20% · Claude 5.0% | 13% | 7.5% | 20% | 5.0% |
| apnews.comChatGPT 25% · Claude 0% | 13% | 0% | 25% | 0% |
| hyundai.comChatGPT 20% · Claude 0% | 10% | 5.0% | 20% | 0% |
| which.co.ukChatGPT 5.0% · Claude 15% | 10% | 2.5% | 5.0% | 15% |
| elpais.comChatGPT 20% · Claude 0% | 10% | 0% | 20% | 0% |
| jdpower.comChatGPT 15% · Claude 0% | 7.5% | 7.5% | 15% | 0% |
| consumerreports.orgChatGPT 15% · Claude 0% | 7.5% | 5.0% | 15% | 0% |
| autoexpress.co.ukChatGPT 0% · Claude 15% | 7.5% | 2.5% | 0% | 15% |
| it.comChatGPT 0% · Claude 15% | 7.5% | 0% | 0% | 15% |
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<a href="https://aigrow.gg/ai-sources/for/car-brands"><img src="https://aigrow.gg/og/ai-sources-for-car-brands.jpg" width="1200" height="630" alt="The five sites ChatGPT and Claude read most before they recommend car brands, October 2026" style="max-width:100%;height:auto"></a>
<p><a href="https://aigrow.gg/ai-sources/for/car-brands">Source: AIGROW AI Source Map, October 2026</a></p>By country
The five sites read most in each country with at least 5 answers. 20 with fewer are in the data file only.
How this was measured
- The question
- Each assistant was asked the questions a buyer asks, with web search on: about a local trade in a city, or about software or a consumer brand in a country. Every page its searches returned and every page it gave as a source was kept.
- Counting
- A site counts once per answer, however many of its pages the answer read. Read is the share of answers that read at least one page of the site; cited is the share that gave one of its pages as the source of a recommendation.
- Sources
- A site counts as a source only when it appears on 3 or more pages of the Index. Below that it is almost always a business’s own website or a one-off article.
- Edition
- October 2026. 40 answers: ChatGPT 20, Claude 20.
- Coverage
- Not every assistant has answered on every page yet this month, so read each assistant’s shares next to its own number of answers.
Citing this data
AIGROW, AI Source Map, Car brands, October 2026, aigrow.gg/ai-sources/for/car-brands. The figures and the data are published under CC BY 4.0: reuse them with a link to this page.
Is your business on the sites the assistants read?
The free scan asks ChatGPT, Claude, Gemini and Grok the questions your customers ask and shows who they name. Check whether your business is on the sites they read before they answer.
Edition October 2026 · data under CC BY 4.0