Engine sounds

I just think that NFS:MW has the most accurate, satisfiying and exciting engine sounds than a lot of racing games. Gran Turismo, considered the benchmark of racing games by the industry, isn't even close to the accuracy of MW.

I also enjoy the fact that programmers thought about ajusting the sound of your engine when you buy a hi-level tune-up. It feels great to hear the sound precisely synchronized with gear-change and with the rev of the engine, at low or hi-speed. Kudos for that, EA!