I can give you a previous owner's perspective on the C350 as I owned mine for two years before trading it in. I was in the same boat before purchasing this car (C63 cost prohibitive, C300 too slow) and found it to be a nice medium between the two. Before making your purchase, there are a few things you want to look for with your ride. First, make sure your car has the P02 package (includes the self leveling HID's and a few other goodies) and I would highly recommend the glass roof (makes a night and day difference in both looks and makes the car "feel" much bigger than it is). Since you're looking for more performance, I would secondly plan on investing in the ECU upgrade from Renntech as this made a night and day difference in the performance of the car. I remember it being about $1,400. In regards to your concern about the car not being a manual, I believe you'll thoroughly enjoy the 7 speed automatic. It screams off the line in sport mode as 1st gear is ridiculously short. And in regards to your wife's concern about it being rear wheel drive, the ESP and traction control conspire very well together to make this car feel like it has all wheel drive. It was extremely difficult to break the rear loose without turning off the ESP. I still put General ArctIc Altimax's on mine for the winter as I traveled to the Berkshire's twice a week, however, and I would certainly consider getting a set for yourself as well. I miss mine dearly as it was bulletproof and still drove like new when I traded her in with over 88K on the odometer. Not a creak or rattle anywhere. I hope this info helps in your decision!