I do take public transport with my boyfriend and how small is the small car you're talking about? smart for two is a tiny/small car and viva/kancil are considered as small cars as well. But you still see girls sitting inside of the cars. Don't tell me you have never met someone that drives a kancil that's with a girlfriend or a wife.
Then I think you should better consider changing your circle of friends (IF those girls are of the same circle) as you have definitely gone to the wrong place. Even if they do not belong to the same circle, ask yourself, do you fall for the same 'type' of girls for always?

Totally OOT: girls might go for money, looks and cars. while for guys, they go for looks, body stats, virgins    *please do not take serious offense in this. am in no intention of offending anyone*