Hello, I am looking at purchasing a 2006 WRX STI from this seller I found, the car is in showroom condition and is under ebay protection warranty. I will be dropping $7000 for it. I am 18 and a college student and I just want any tips or things I should know to make sure she is at her best. I'm really into imports and Im not your typical 18 year old speed demon. How is this car insurance wise? also what about gas? I assume it takes premium, which isn't a huge concern. I would appreciate everyone's input.