Top Gear The Challenges 6 combines all the meaty goodness of incredible car-based endeavours with all the tasty treats of brilliant star guests and a delicious gravy of pure distilled Stigginess. Counts as one of your recommended five-a-day intake of three silly men arguing, falling over and accidentally setting things on fire. The Ashes Jeremy, Richard and James welcome their colleagues from Australian Top Gear to Britain by picking them up in a prison van…