Did Asphalt 5 and Asphalt 6 not quite cut it for you when it comes to racing games on Android? Can I not tempt you with N.O.V.A. 2 either? Fear not! Gameloft is back with a new title, GT Racing: Academy Free+, which is available to download right now on the Android Market.
Although the title is free, you will probably have coughed up some money by the time you've finished playing. In-app purchases include XP multipliers and credit packs to buy new cars, of which there are 111. It's probably safe to assume that the in-game models are somewhat cheaper than their real life counterparts, though, so there is a realistic chance that you'll be driving a Ferrari by the time you're done.