I just bought a 2004 E55 with only 18,000 miles on it, it is basicaly a brand new car. It has some aftermarket Renntech equipment on it and it dyno'd out @ 514 at the wheels. Here's my question, I can buy a 4 year warrenty from Mercedes for $5,000 with a $200 deductible. Does anybody think this is a good idea? I've been told that he engines and trans are pretty bullitt proof. But I also like to sleep at night not worrying about a major repair job.......