: Richard Hammond’s Toyota Land Cruiser rolling down a slope was not a scripted stunt. It was a last-minute safety decision because the car's brakes had failed, making it too dangerous to drive down the slope.
If you are in the United Kingdom, the holds the master copy. However, note that this is the re-licensed version (music changes applied). The benefit? It is 1080p, uncut for runtime, and has zero audio sync issues. Search for "Top Gear Bolivia Special" within the Top Gear collection (Series 14). This is the official “fixed” episode in terms of video quality and length.