Since I'm very close to pulling the trigger on trading my 2006 G6 GTP on a 2009 G8 GT, I went and got a quote on the insurance difference. Being under 25, I was worried that a V8 sedan that is built in Australia would have a killer insurance price. Um, nope. Not at all.
It turns out that the insurance on the G8 GT will only be about $35 more a year than what I pay for my G6 that is 3 years old! Actually, it is one of the cheapest cars to insure that I have looked at.