Richard Hammond finds out if Volkswagen has improved its second generation Touareg 4x4 by taking it to Sweden for a race against some hardcore snowmobilers. James May is in Germany attempting to break his personal speed record in a brand new, even more powerful version of the amazing Bugatti Veyron. In the year that legendary F1 star Ayrton Senna would have turned 50, Jeremy Clarkson asks why he's still considered the best driver of his generation.