Drop it. CF hood/trunk. Tint the windows, smoke the lights and a new system. I would keep the wheels, they look nice as they are.. maybe thats just me tho. As for a new exhaust, nothing too ricey, maybe even keep it stock. I think tC's are great with just a few simple modifications.
As for tC's being girl cars, i know alot of ppl that say miatas are girls cars. When it comes down to it i think that its really about what the owner does with the car. Unless its like some pos vw bug, like the new ones. Screw that, thats a girls car.