Yes
Well, it is a kind of complex issue. You have to bear in mind that cars for him is kind of living person, which has emotions and sense(like a close friend). As long as he sees them as living person, it is not good idea. Alternatively, if your BF is interested in three ways or other sexual relationships, it could be a prime idea to pose in a sexiest manner.
It's only sexy if it's sexy TO HIM. You can't ask guys in general if it's sexy, because guys are all different.
Sounds good to me, different pictures would require different outfits.
After that, he'd never want to leave you.
