(Disclosure: This site contains product affiliate links. We may receive a commission if you make a purchase after clicking on one of these links. Read our affiliate disclosure for more info.)
Test Drive Unlimited 2 is on sale for $5.00 / £3.75 (75% off) as the GamersGate / GamersGate UK Daily Deal for 10/15/12.
I believe this game uses Games For Windows Live (GFWL).