My boyfriend won't let me drive his bmw?

he's f***ing obsessed with that car... Sometimes i feel like he pays more attention to the car than me. but he won't let me drive it... and that gets me pissed. we been together for over a year. and i never drove it, he won't even let me eat in the car. I'm pissed. he knows beamers are my fave cars, my boyfriend has one I should be happy that I would be able to drive one. but nooo he got to be an a$$ and not let me drive it, not even once. I don't ask him to drive it all the time..just at times. He is getting me pissed with that car. i let him drive my benz. I feel like smashing his car...ughh i don't know what to do? How to convince him?