Get a 2011 w/ competition package. The "driving feel" of this car is honestly one of the best parts about it. The engine and transmission are great of course, but the connection you feel to the road is something special that you can't get in most other cars. The newer BMWs will be quicker for sure, but I'm not sure there is much room for improvement in connecting the driver to the road.
You should read/watch every review and comparison test you can find. They convinced me. After 6 months of driving it I can say I agree with nearly all of what the reviews said.