@selnor
From Wiki :
"In Holiday 2007, Xbox 360 Pro and Elite packages were bundled with Forza Motorsport 2 and Marvel: Ultimate Alliance. In the UK and the Netherlands, Forza Motorsport 2 was bundled with Viva Piñata." - 500k+ sales there. Maybe even more with bundles in AU and NZ.
Hence 4 million - 500k = 3.5 million lifetime.







