To celebrate the launch of Forza 3 this Friday, Microsoft plans to tear around the streets of London in a bright red Ferrari.
Spot it, take a picture and upload it to Facebook or Twitter (tag #forzasupercar) to win some goodies. Prizes range from copies of the game right up to Xbox 360 Elite consoles.
The press release doesn't mention exactly what model the Ferrari is, but it doesn't look like a 458, which is a little disappointing. Incidentally, the red stallion will be branded with Forza III stickers and Microsoft logos, so you shouldn't be able to miss it.
Race over to our Forza Motorsport 3 review for a full, under-the-hood analysis.