We've already seen a short bit of footage of a single Model S on the road, and now Tesla has released an even briefer video of not one, not two, but three vehicles on the track for some alpha-level testing. No, they're not racing (at least not on the video), but it certainly looks like they're ready for one. See for yourself after the break, and look for things to improve further from here -- Tesla says it's now already applying what it's learned from the testing to its forthcoming beta vehicles.
