Hi, I'm a newbe looking for a i3 rex and found a 15 on a dealer's lot, he's asking $34.8., 6100mi. To me this seems high for a 2yo car since I can get a 17' for $42.5 after credit. Only 3.5k depreciation per year? This can't be right, the14's I see are going less than $20k. Any advice on what...