60 FPS trailer for Gran Turismo PSP is sharp and smooth

We've seen pieces of media for Polyphony Digital's impossibly good-looking racer Gran Turismo PSP -- though no videos have offered looks of the game running at 60 FPS. We're not sure why a video game would need sunblock that powerful, but we -- what's that? Oh. Frames per second. We see.

Eurogamer's Digital Foundry has assembled a lengthy gameplay clip running at 60 frames per second -- though you may need to download a special version of the video from the site to truly see all those frames. The big brains over at DF also break down how the game's buttery-smoothness is scientifically possible, which more or less dismisses our "Elfin magic" theory out of hand. Click here to watch the video.
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