Matt 
2009 BMW 3 Series Sedan 335i xDrive 4dr Sedan AWD (3.0L 6cyl Turbo 6M)
A big step up!
 Great car! Looks great. Drives great and is scary fast. Very smooth so you have to keep an eye on speed. Mileage is about as expected (21 mpg overall so far). Compared to Caddy CTS, Infiniti G37, Audi A4, Acura TL.  For driving feel and fun, BMW wins easily (G37 is closest). Had trouble with sun visor pulling out of headliner, which is now fixed. Also got a flat tire on way home from the dealership - run flats came in handy! The AWD seems to work well, but the tire grip in snow/slush/ice is not great.  Overall, and expensive purchase, but I have absolutely no regrets.