oh, I saw the modded cars at SF SmartCenter, the seats have what looks like a zippered-on leather cover (but it doesn't really unzip per se). they had 3 black ones and a blue one with a missing shift knob (someone needed it for their car apparently)
You can get the gps they installed at a local shop, i think they may be making arrangements for that, as well i heard one of the performance mod shops not too far from the dealership is talking about doing a remus exhaust kit for the smart! that would be one sweet bolt-on improvement. i plan to do the intake and exhaust mods to mine when i get it.. was considering the ecu chip mod but after hearing everyone's happiness with the factory program i will probably hold off on that (uh yeh that..)
I bought some smart swag before leaving, gotta get your shirts and jackets and what not while they last!