Not always.. Just because someone has an expensive car doesn't mean crap. I've seen people roll brand new z06 vettes and live in 30,000 trailers full of garbage
I would automatically think you are rich, not everyday do I see cars like that. I rarely see them. If you can afford it you make bank. Which makes me think yes you are rich! Hope I could help!
It depends on where you live, how you are, and if you try to show off. For me I live in Kernersville, NC, I am 17 and I have a 2004 325i and I am a senior in high school so people do deem me as the rich kid. Then again its where I live which is hill billy hell.