Fast Racing Neo
Marred only by a relative lack of content, Fast Racing Neo more than ably fills a void left by other futuristic racers and just looks and sounds incredible as well. The immediate rush of firing it up, being pounded by the soundtrack and thrown into a race never really dies down in the time you're playing it. The levels are well designed and insane, and whether you're rushing down a desert with mechs smashing around and giant sand worms, or dodging meteors on the outside of a spaceship, Fast Racing Neo is just a great experience.
If you already own it, I wouldn't recommend picking this up even if you are fancying a second playthrough and own it elsewhere (why waste the money on a game you already have?) but for first timers, go for it. It's fun, well made, and hopefully if it does well, we'll see some sequels set in their weird post-human no-electricity world.