If you roll the H2, you get that much mass going in any direction and nothing good can come of it. But I don't think anyone here is looking for a discusion on Physics. So, I'm not sure that safety is based solely on size.

I have no problem with a 16 year old getting a brand new car. A 70,000 dollar car though is a waste. All ready totaled one, so get a newer one with more bling. That H2 will be torn to crap well before college even enters the conversation. Not my money though, so have fun with it.