[Paul J. Taylor] Since it's late October launch, Forza 3 has sped into over 1 million homes worldwide, marking a commercial milestone for Turn 10's critically acclaimed racer. In conjunction with today's release of the game's second and now premium DLC car pack (the first one's always free, ain't it?), dubbed "Hot Holidays," Microsoft has tallied up some Forza 3 stats. According to the publisher, players have so far tracked 6.6 million hours and 590 million collective miles -- no word on flats or oil changes. Microsoft's Aaron Greenberg tweets that "more than 4M [million] auction bids" have lead to "$18.7 billion" virtual dollars spent (we have to imagine at least a billion went to that gorgeous coop pictured above). Of course, Microsoft has it's eye on the real dollars, offering today's 10-car pack for 400 ($5). The full list of cars is posted after the break. Additionally, a second premium pack has been confirmed for January 12, and -- wouldn't you know it -- that date coincides with the kick-off of the Detroit International Auto Show. Huh, you think that was planned?