We built this Skills game for the PSP version of Gran Turismo. We didn't even attempt to try and make a racing game to promote one of the most popular racing game franchises of all time, so instead we went for a skills game.
This series of skills tests are based on actual training programs used by various organisations for new recruits. It measures your reflexes, memory and response times. All of which will help improve your Gran Turismo skills! We didn't steal it and it can be found on both our own site and on Sony's GT PSP site!