"It is a very safe car."
Translation:To bardzo bezpieczny samochód.
I agree, you should report. Are you Polish, from South-East (Małopolska, Galicja itp?). Supposedly "auto" is very informal in the rest of country?
I'm from the central Poland (south of Warsaw) and it's not considered informal, maybe slightly more informal than 'samochód' but still you can use it in most situations.