Gran Turismo 5 X1 Prototype teaser
Gran Turismo 5 X1 Prototype – Click above to watch video after the jump

At some point in the future, Gran Turismo 5 will be available for purchase. And yes, it's taken too damn long. But making the wait that much more painful is news fresh out of Tokyo that a special vehicle will be available for thumb-thrashing fun.

It's not some uber-exotic that you pine for while staring longingly at photos on the web, nor is it some championship racecar from today or a bygone era. It's nothing you've seen or heard about before – its called the X1 Prototype.

Digital Polyphony has teamed up with Adrian Newey from Red Bull Racing to ask: What would happen if a top-tier racecar was freed from any and all technical regulations? What speeds could it achieve, what would it look like and what automotive records could it devour? The answer to those questions, and possibly many others, could be found with the X1 (virtual) prototype vehicle.

The team who produces Gran Turismo is known for their attention to detail and the realistic tracks, while cars and driving dynamics are a major part of the popularity behind this series. So it's safe to assume that the drivable concept sticks to the laws of physics while pushing technology to the limit. Think of it as a return to the turbocharged 80s-era F1 cars, with some Group B rally monsters thrown in along with a heaping helping of cutting edge technology.

Our interest in the return of GT5 has been waning after the dozens of delays, but the X1 has our interest seriously piqued, and the crew from Joystiq has snagged video of it in action. We also have a trailer video which shows off lots of the cool (real) cars, the amazing tracks and the dynamic weather we can look forward to. Take a look at both clips after the jump.

[Source: Joystiq]