I have a 944 that's in good physical condition. The interior needs a little conditioning, I want to put new seats in it, I don't like the white leather ones. The car is show worthy, but could stand for a little TLC.
EVERYTHING is stock.
There's a K&N air filter in it.
I'm actually open to just about anything as far as interior/exterior visual upgrades go, I want to keep the cars original color however. I haven't seen a lot of body kit options for the 944s but I would probably be open to what is out there. I have NO problem wearing vinyls to car shows.
If anything was going to be done with the engine performance-wise, for example a turbo, I'd like to rebuild the engine first, it has somewhat high miles but runs great. But as the engine is old, anything aftermarket would probably put a lot of stress on it and just be more likely to cause problems.
Sway bars, high performance ECU chip, custom cold air intake, short shifter, racing seats, performance exhaust, wheels perhaps, a little bit darker tint are a few things I'm considering putting in soon. I would like to put a high performance racing clutch, and high performance brakes in the car. I wouldn't object to updating the car audio from the tape deck by any means whatsoever.

There is now actually a single black pinstripe running the full length of the car just below the flared wheel well ridges.

The picture below here is actually one of the car before I bought it, the previous owner kept the newer Porsche wheels.