F1 champ Button ups ante for Angus racer Mitchell with one-off appearance in British GT Silverstone showdown

© Courtesy British GTJenson Button is to make a one-off appearance in the Silverstone 500 finale of the 2020 British GT Championship.  Pic: British GT.
Jenson Button is to make a one-off appearance in the Silverstone 500 finale of the 2020 British GT Championship. Pic: British GT.