This video is just the ending part of the Scrapheap Challenge "jet railway sleds" segment as broadcast in Australia on ABC2/4. This video has just the two vehicle runs, minus some meaningless narrator guff between the two runs. For the record, the jet engine with afterburner won by a reasonable but still not huge margin.
Because of how the driver of the jet engine sled shut down the main engine before turning off the fuel to the afterburner, his crew had a bit of a scare thinking the huge tongue of flame from the afterburner was the whole thing going up in flames! It didn't help that they were 250 metres (around 200+ yards) away at the time with some trees in between and could only see the sled from behind.
Sorry about the station ID and "coming up next" rubbish the TV station added.
