2007 Acura TL 4dr Sedan w/Navigation (3.2L 6cyl 5A)
I work as a technical automotive writer and have written, researched, and driven many different types of vehicles. For me, the TL is the best car in its class. While the G35 and IS 350 are quicker, and the 330i's handling dynamics are superior, no other car balances performance, technology, comfort, and value better than the TL. Plus, all of these cars cost quite a bit more comparably equipped.
Real-time traffic (a real help in LA!), backup camera, HandsFreeLink (although it picks up some ground noise), excellent handling with a ride that's firm yet supple, 30+ mpg on the highway, great sounding engine and exhaust, excellent audio system, butter-soft leather seats, and it's fun to drive!
Steering wheel needs to be thicker (Accords have thicker steering wheels!), better brakes (should bite better), fix ground noise on HandsFreeLink, rims get scratched too easily, needs more low end torque. I'm sure these will all be addressed with the new TL that's due in a few years