Common problems in no particular order:
Getting pulled over for racing
Getting Speeding Tickets
Spending a fortune on Tires
Deciding which chick you'll be taking with you
Seriously though - only thing I heard was the 97's had some kind of cooling issue.
I forgot- some run hot. Mine runs at the A in "normal" all year round. Also, the 96's have a TSB about this. The car was changed in 97 inorder to solve overheating problems of the 96.
Yeah tires are a big problem. It seems that a lot of the early 97's have had nearly the same heating problems as the 96. The other problem with the Cobra's is. Once you've had 32v. It's hard to drive a 2v even on a test drive.