I'm on the verge of trading my 2000 Gt for a 1998 Cobra. I'm a bit worried about the reliability of the Cobra's. The Gt has been a solid car for the length of ownership (about 4 years now), and I hope making a trade like this won't be a step backwards. So I suppose my questions to you guys are: 1. What are the most common problems w/ the 4.6 DOHC? 2. What simple mods are truly beneficial aside from gears? 3. Is the 98 Cobra (53k) worth selling the 00 GT (33k)? *I really wouldn't gain or lose money in this trade. THX!