This is the original link, before someone stole it and put it on liveleak. Original comments below:
"Aviation Race Of Champions 2013 Engine Failure"
After spotting the finish line for the 2013 Race of Champions in Ulundi on 10/08/2013 we started recording this video. About twenty seconds later our engine died. We switched fuel tanks and she started up for about 2 seconds before dying again. We couldn't get her running so we decided to land on a river bank. As we slowed down the prop stopped wind-milling and later on the weight of the nose fell into the loose sand...
Pilot: Christiaan Richardson
Navigator: Christiaan Vosloo
Race no. 88
The cause is unknown but a vapour lock was suspected in the fuel lines.
The plane was inspected by engineers and flown out of the river bank by Chris Briers two hours later.
He was flying as part of
Zululand Race of Champions | Race of Champions - www.airrace.co.za
Note their Press Release.
Looks 100% legit to me!