I liked it at first but when you beat some levels it gets worse and worse and worse as you bullet other cars through a mad driver. There is no story no free roam it was really bad. but not the worst game ever.
Full Auto is really only useful for adding some points to your gamer score because of the fairly easy to get achievements. One solid weekend of play and you can get pretty much every single one with the exception of the multiplayer awards.
Otherwise, the game is just not that great. It's a racing game similar to Burnout, but tries to throw some guns in there to mix things up. Really, it tends to throw too much to blowing stuff up and not enough to racing. In fact, you'll spend a lot of your time trying to fall behind other racers so that you can blow them up to get a higher score and unlock more stuff. The whole thing just ends up weakening the whole experience to the point where you'll either put the game away after a quick run through, or push through to get the overly easy achievements.
The game is just forgettable in every way. There isn't really anything glaringly wrong with the game, but nothing really great about it either. The only reason I can think to get it was that, at the time it was released, there weren't really a lot of options for 360 games.
Multiplayer may be okay, but I was too bored with it to even bother, and I really don't see how much better the game could get, as the multiplayer we basically the same deal only racing against other people.
So, go ahead and rent it if you want some quick and easy points, but other than that, there is no reason to bother with this game, especially with better racing games and better shooters out there now.
As arcade racers go, it's pretty good. You race around some circuits with various weapons bolted onto your hood and take out your fellow drivers (and pretty much all the scenery) as you go.
The courses are reasonable and pretty much totally destructible - it's great stopping an opponent by tearing up a pile of pipes, or blocking the road by shooting a truck into the middle of it. The driving is pretty good, and the cars handle very much like Crazy Taxi and not at all like other racers, so it retains a very arcade feel.
Downsides are that the selection of weapons is a bit small, there are not too many tracks, there's a little slowdown at times and due to the way the game is laid out it gets pretty samey. But if you're a fan of arcade racing and the ability to blow stuff up, go for it and it'll keep you entertained for a week or so.