Lengthen the wheelbase a little, reduce the steep rake in the front windshield a little and shorten the front overhang a little bit, make the rear doors a little bit longer for easier access (maybe eliminate the little port window in the back?), lenghthen the trunk area a little bit to reduce the bulge. Also, maybe put some more curves into the side sills, like the Gen 1's used to have, and maybe make the front valence a little more edgy (not ricer edgy, but the new Toyota solara king of edgy). I like the taillights and the trunk spoiler however
Front end looks a little like the Austin Martin Vanquish. The overall shape is really nice; reminds a little of the Gen3, but without the fish comparisons, while having a bit more of a flair than the Gen4. I know it has nothing to do with the car's design, but those wheels and tires have to go
Need smaller rims with a little more rubber to balance out those tiny brakes (or make the brakes bigger...or do both!
EDIT: oh yeah...keep those side vents!!!