Probably mostly a desire to go fast.
Quite a few different automakers have made Vision Gran Turismo concepts for Gran Turismo 6, but few have put forth as much effort as Alpine, the performance branch of Renault. But recent chatter from Renault suggests that this is all being done to attract attention to the brand ahead of its relaunch as a maker of road cars. So it's therefore not too surprising that we've just gotten a new video of the car in its virtual racetrack environment, lest we forget that the admittedly cool looking car exists.
The video is supposed to tell us a bit about the inspiration for the car, and while we're not so sure it does that exactly, we don't mind getting another look at it.