Series 16, episode 5: rehearsal pics

It's BMW vs Audi this week in an automotive showdown of Teutonic proportions.Yes folks, the latest BMW M3 takes on the Audi RS5, as both cars attempt to rewrite the rules on oversteer and power-to-saloon-size ratio. In a bygone age, a small saloon would be crackly if it had a four-pot; both these monsters are packing V8s.There's lots more of course, but in the meantime, why not satisfy yourself