My girlfreind orignally hated mine before she really got to know me and why i like them. She mistook me for a boy racer before i explained the difference between people who are passionate about cars and people who buy cars to extend their penis size
These days she is quite fond of it, but everytime i thinking about buying a 328i shes very quick to agree
All in all though she has no problems with my interest in cars - sees it as a better hobby than being down the pub etc