Extreme G Racing is a wonderful piece of eye-candy, with great special effects and nicely designed scenery - that you'll be too busy flying past to notice.
As for the sound, Extreme G Racing has it in spades, with appropriate souind effects and realistic proximity sound (yes, you can hear when a motorscyle is overtaking you) - and 5 music tracks by 'Ministry of Sound'... ...even the menu music has a good beat (and I can dance to it...)