I gave the IS a 2nd look, played with the interior, pushed buttons and did a detailed walk around. In the end, it just didn't do anything for me. Pulled the trigger and picked this up today. Has I think every option offered I can think of other then heated seats WTF? P2 package, 18s, rear sun shade, pana roof, nav, heated light washers, folding rear view mirrors (fold back when you park) HIDs, lights that turn when you turn the wheel, auto rain sensing windsheild wipers yada yada yada. Found it with 3K miles on it. Took this night pictures after I got home from the dealership, while taking pictures I had a guy walk up to me and ask me if I'd sell it to him. I told him nah, I've only had it for about 3 hours, he would have to get his own. After spending some seat time with it, I'm very happy with it, handling wise it's night and day from the IS, the IS don't get me wrong handles great, but its just..... just not the same, I've read many reviews for the IS350 touching on the whole handling thing where it feels fake, too automated, no feel for the road. and so on. C350, while a bit slower in a straight line, clearly feels better on the backroads. Fun factor is clearly there. Car has a 50K mile 4 year bumper to bumper warrenty. I'll be the gunnipig, I always hear bad things about Benz, but always on the internet, never in real life. We will see what happens. I'll keep you guys updated with issues. P.S I've been searching around the MB forums for the last few days and so far... my god, they all suck major injen pencil. Like... really bad.