2008 BMW 3 Series 328i 4dr Sedan (3.0L 6cyl 6M)
This is a well balanced sports sedan. The engine, transmission, suspension, steering, seats and controls all work together to provide a great driving experience for an enthusiastic driver. I always feel like I'm in touch with what's happening and in total control of my car. But this car isn't for everyone. The ride is too stiff for most people, especially on rough roads.
Handling, power, feel, quietness, solidity.
Dump the run-flat tires. Germany has nicely paved roads and autobahns that allow very high speeds, so run-flats make sense there, but the U.S. has lots of bad roads and very low speed limits. The run-flats are too harsh on bad roads.