Usain Bolt, will race his new Nissan GT-R (a replacement for his flipped BMW M3) against track star Asafa Powell in a Mercedes Black Series CLK C63 AMG this weekend in Jamaica. Gentlemen, start your obituaries.

The race is supposed to be "gentlemanly" so were not sure if a jealous Powell is going to put Usain into the wall, but we'd pay to see that. Given Bolt's ability to flip his powerful cars, we're guessing the 485 HP GT-R isn't long for this world. (Hat tip to Paul!)

Photo Credit: GT-RForum User Chiphomme, Jamaica Star