These guys are awesome.
You've probably seen parkour stunts before, but how many have included moving cars? With just a few days to rehearse these street jumping experts were able to put some ideas they've had brewing in their minds for years into practice for this awesome production by SubOverHype. For example, William Spencer, who played Spiderman's stunt double, had always wanted to ride a skateboard on the side of a wall while holding onto a moving car. So that's what he did.
Him and four other stunt guys pretty much had free reign to do their thing with a trio of Fiat 500 Abarths, and the result is spectacular. A top five video of the moving car stunts can be found here.
But the extended version is also well worth checking out.