Complete each achievement to get the allotted gamerscore:
ToW Star (40) - Beat 58 seconds on one single lap of 'Gran ToWrismo'. Solo race rules.
ToW Hero (20) - Race 'Wheel master' (3 laps) and win against 5 hard AI 4 times consecutively. Race rule.
ToW Less (20) - Win race 'RosWheel' without picking up any bonus.
ToW off (20) - Rank in the top 10 of any 'against the clock' leaderboard.
Mad Crash (15) - Find the Mad Tracks car in "World of Wheels" and ram it.
ToW Champ (15) - You must win the last race of the Citrus Cup.
ToW fall (15) - Race 'Shake your body', drive in the bidet and finish the race.
ToW for life (15) - Complete 50 races lifetime.
ToW Tunes (15) - Run into the jukebox to turn it on in 'Get first or die trying'.
ToW Gether (10) - Play a co-op race with a human player online or split screen.
ToW Day (10) - Read the last page of the blog.
ToW Go (5) - Finish any race, any place, any rule. Yep, pretty much a given achievement.