I like his commentary Great race in the Juniors. I always wondered why they stuck with that front end design with all the bonnet flip ups, but I suppose if they know that's the risk then it might discourage them from trying the standard BTCC bump and run overtaking technique.
Looks like a blown coolant pipe post head gasket or liner integrity failure, build a bit of boost on the launch and pop, hence lots of steam and fluids. Doesn't look like oil. A mop might have been handier.