Earlier this week, I posted up some videos and pictures about the 850 hp VR38DETT powered Dacia Duster that is competing at the 2011 Pikes Peak Hill Climb. I found a couple more videos, some more in depth, and better testing videos. The car is very purpose built. In the video you can see the very large intercoolers, and turbo charger, and exhaust setup. The car does sound a little odd, as you are only really hearing 3 cylinders at a time.
The first video is a build video, including some engine dyno.
The second video is a testing video.