Car repair shops in Porto that AI assistants recommend
We asked ChatGPT, Claude and Gemini the four questions a buyer asks when looking for car repair shops in Porto, three times each, in Portuguese, and counted who they named. These are the businesses named in two or more of the 36 answers.
Names are printed as the assistants wrote them. We have not checked that any of them is good, open, or real.
- Answers
- 36
- Businesses named
- 21
- Named only once
- 12
- Named by 2+ assistants
- 5 of 9
- Named again on a rerun
- 57%
Edition September 2026. Download the data
Asked for car repair shops in Porto, ChatGPT, Claude and Gemini most often named Midas (72% of answers), Norauto (56%) and Bosch Car Service (31%). Across 36 answers they named 21 different businesses, 12 of them only once. Each of four buyer questions was asked three times, in Portuguese, in September 2026.
The ranking
The AI Recommendation Rate is the fraction of the 36 answers that named a business. The range under it is a 95% confidence interval: where two ranges overlap, the gap between those businesses could be chance.
| # | Business | AI Recommendation Rate | ChatGPT | Claude | Gemini | Questions | Avg. position |
|---|---|---|---|---|---|---|---|
| 1 | MidasAlso written Midas Porto, Oficina Auto Porto, Oficina Auto-PortoIs this your business? | 95%: 56 to 84% | 100% | 17% | 100% | 4 of 4 | 1.7 |
| 2 | NorautoAlso written Norauto Porto, Norauto MatosinhosIs this your business? | 95%: 40 to 71% | 92% | 17% | 58% | 4 of 4 | 2.4 |
| 3 | Bosch Car ServiceIs this your business? | 95%: 18 to 47% | 17% | 0% | 75% | 4 of 4 | 2.7 |
| 4 | Feu VertAlso written Feu Vert PortoIs this your business? | 95%: 4 to 25% | 17% | 17% | 0% | 3 of 4 | 2.8 |
| 5 | Auto Reparadora do Campo AlegreIs this your business? | 95%: 3 to 22% | 0% | 0% | 25% | 2 of 4 | 1 |
| 6 | Auto Reparadora da BoavistaIs this your business? | 95%: 3 to 22% | 0% | 0% | 25% | 2 of 4 | 1.3 |
| 7 | Auto Mecânica da BoavistaAlso written Bosch Car Service - Auto Mecânica da BoavistaIs this your business? | 95%: 3 to 22% | 0% | 0% | 25% | 2 of 4 | 2.7 |
| 8 | EuromasterAlso written ATS Euromaster PortoIs this your business? | 95%: 2 to 18% | 8% | 8% | 0% | 1 of 4 | 3 |
| 9 | Auto Reparadora da PreladaIs this your business? | 95%: 2 to 18% | 0% | 0% | 17% | 1 of 4 | 5 |
Each assistant column is the share of that assistant's own answers. Questions counts how many of the four produced the name at least once; position is where it came in the answer's list, 1 being first. 12 more names came up in a single answer and are counted above but not listed.
Is this your business?
See what the assistants say about your business today. The free checker asks ChatGPT, Claude, Gemini and Grok two of the Index questions for this category, with the category and the place already filled in, and shows every answer word for word. About 30 seconds, no sign-up.
What each assistant said
The same questions, the same number of times, and often different names. Each column is one assistant's top five from the ranking above, with the share of its own answers that named them.
| # | ChatGPT | Claude | Gemini |
|---|---|---|---|
| 1 | Midas100% | Midas17% | Midas100% |
| 2 | Norauto92% | Norauto17% | Bosch Car Service75% |
| 3 | Bosch Car Service17% | Feu Vert17% | Norauto58% |
| 4 | Feu Vert17% | Euromaster8% | Auto Reparadora do Campo Alegre25% |
| 5 | Euromaster8% | No other name twice | Auto Reparadora da Boavista25% |
Claude named no business in 10 of its 12 answers.
Named here? Put it on your site
Every business in the ranking was named in two or more answers. The badge says that and nothing more: no position, because the ranges above do not support one. It links back to this page, so anyone can check.
<a href="https://aigrow.gg/index/car-repair/porto"><img src="https://aigrow.gg/badges/index/2026-09/car-repair/porto.svg" width="312" height="100" alt="Named by AI assistants: Car repair shops in Porto, AIGROW AI Visibility Index, September 2026"></a>The questions
Asked word for word, three times each, to every assistant, in Portuguese. The English under each is our translation. The prompt is the one the free scan uses. No web search, no location and no chat history, so every answer starts from the same place.
- 1Qual é a melhor oficina automóvel no Porto?What is the best auto repair shop in Porto?
- 2Tenho a luz de avaria do motor acesa. Que mecânico no Porto me recomendas?My check engine light is on. Which mechanic in Porto would you recommend?
- 3Que oficina no Porto é honesta e tem preços justos?Which auto repair shop in Porto is honest and fairly priced?
- 4Preciso de substituir os travões do meu carro no Porto. A que oficina o devo levar?I need new brakes on my car in Porto. Where should I take it?
How to read this page
- What it measures
- Which names these models produce when asked cold, from what they learned in training. It is not a review, a rating or our recommendation, and a business missing here may simply be one the models were never shown.
- Why the ranges matter
- 36 answers is a sample. Asked again next month, most shares will move by a few points; the ranges say how far they could move by chance alone.
- One business, several spellings
- Branches, legal suffixes and spellings of one business are merged, and the other spellings are printed under its name. Names that might be two businesses are kept apart.
- A name is wrong
- If a business here is closed, misnamed or yours and you want it removed, tell us. We correct or remove it when the page is next published.
Elsewhere in the Index
- Car repair shops elsewhere
- LisbonBelo HorizonteRio de JaneiroSão PauloAarhusAmsterdam
Is your business on this list?
The free scan asks the same assistants the questions your customers ask, scores whether they name you, and lists who they name instead.
Edition September 2026 · published by Guglielmo Paesano, founder of AIGROW · data under CC BY 4.0