I read on another forum that there is a service bulletin (TSB#04-08-49-023) from Pontiac to fix that MPH brightness problem. It is for GTOs built prior to VIN breakpoint 4L299640, so I assume that the ones with later VINs already have that corrected. I was all set to have the dealer fix that before I took delivery of mine, but it has a later VIN, and the MPH indicator is not bright at all, so they must have made a running change on that in production. The fix is for the tech to download the latest "BCM code" and install it on the car's computer.