Car Magazine caught the 2008 Nissan GT-R on testing around the Laguna Seca circuit in the US. The 500 hp, twin-turbo, 4wd sports car will be "Porsche worst nightmare." We can wait for it to debut, until when enjoy the video!

The video shows the 500bhp, twin-turbo, 4wd sports car testing around the Laguna Seca circuit in the US. These are the best scoop photos yet of the GT-R - it's hardly disguised and the engineers are testing it back-to-back with the Porsche 911.