A money glitch in Gran Turismo 6 has been discovered, allowing players to make 20 million credits in a few minutes.
The glitch (via OPM) is achieved by buying a Mercedes-Benz AMG Vision Gran Turismo with the 1.01 update applied, deleting the update, launching the game without reapplying the update, and then selling the car.
To purchase 20 million credits in Gran Turismo 6 with real money would cost approximately $190/£120.
Sony has yet to comment on the bug, but it's probably safe to assume that it'll be patched out rather promptly.
For more information on the game, check out GameSpot's in-progress review.