Forza Motorsport 3 has now sold two million copies worldwide, according to figures from Microsoft.
"After speeding past the finish line last October, Forza Motorsport 3 is now in the hands of more than two million passionate car lovers around the world,” said developer Turn 10. "To give fans even more reasons to keep behind the wheel with the game, Turn 10 today releases two brand new tracks in the downloadable Nürburgring Grand Prix Circuit Track Pack."
At the start of December the game had sold over one million in its first month on sale.
The new DLC is available now on the Xbox Live Marketplace priced at 400 MS Points.
Earlier this week it was reported that Sony's Gran Turismo series has now sold over 55 million, with the latest Gran Turismo PSP reaching sales of 1.8m.