Overview: This week Extra Gear has full paddock passes as Team Top Gear battle it out at the Birkett Relay in their six grand luxury cars. Rory is joined in the studio by fellow Birkett competitors, race engineer Al Lock and driver Ash Hall from Team Brit. Bruno Senna also joins Rory to talk all things endurance racing and the road to Le Mans. And Chris gets a chance to take the Team Brit Fun Cup Beetle around the Top Gear Test Track.