I think it's in great condition, but I've recently spent alot of money with DC Performance to go over every nut and bolt and replace anything that might need replacing. In general I've had great luck with my car. Mostly city/highway driving, but it's been onthe track about 20 times as well. Including drag and road courses.
The engine and transmission replacements I'm not sure were needed or not. As I was approaching my 100k warrantee I asked my Viper techs to take a detail look at the engine / transmission and see if anything looked bad b4 my warrantee ran out. They came back and found a small oil leak I think that they couldn't fix, so it was replaced.
The transmission I was told had a 3rd gear popping out during some road testing they did, although I hadn't noticed it. Next thing I knew they had replaced the transmission.
Other then that mostly just wear and tear items. I have a ton of minor mods on the car as well. Like Stoptech brakes, Borla exhaust, had straight tubes, but they were replaced when they put in the supercharger. They've now added an intercooler, larger radiator, larger fan, etc. I've also changed out the rear end gears to 3.73's, larger half shafts and recently went to adjustable KW shocks. Mostly minor stuff other then the supercharger. No internal engine mods at all.
Hope that helps. I love the car, have since the day I got it. I'm very happy with the longevity of the compo