You can, it wont make much of a difference though imo

Doubt most girls will even know its a fancy car

You should absolutely do it! But subtle! I have a pic from the inside of may car with the Mercedes star on the steering wheel and my sleeve tattoo showing. Girls never comment on the car but on the tattoo. But they know the car is a DHV. Girls know Maseratis. Just make it look “cool in your car” not “about your car”

You can still use it without seeming try hard by taking natural pictures with it. Like getting out of the car. Etc