Carologist
An expert in the realm of automobiles, or an engineer who has devoted themself toward cars.
I'll ask my friend the carologist about which car I should buy.
Carologist
Someone who thinks they know about cars, using idiotic terms like “sleek” or “horsepower” in the wrong way.
Sentence: She told me that her Pacer had 12 revs of horsepower. She’s such a carologist.