 Complete the following phrase:  A technology demo for Forza Motorsport 4 was first revealed at Microsofts E3 2010 press conference. The live demonstration showcased a passing challenge while driving the 2010 Ferrari 458 Italia. Using the Microsoft Kinect sensor the player steered the car to pass opponents. Forza Motorsport 4 was formally unveiled at the 2010 Spike Video Game Awards. Turn 10 announced that the game would feature over 500 cars from 80 manufacturers, and confirmed that it will support Kinect as well as standard Xbox 360 controllers and racing wheels. Turn 10 officially partnered with the American Le Mans Series ALMS for two years from August 8, 2011. The partnership provides several in-game ALMS themed events to complement the cars and tracks raced in the ALMS present in previous entries in the Forza Motorsport series. Unlike past games in the series, vehicles from the SCCA Pro Racing World Challenge were not present initially in Forza Motorsport 4 aside from a Mopar sponsored Dodge Viper. The Porsche download content pack added one World Challenge Porsche GT3. More known content was leaked during IGNs visit to 