Vicki Butler-Henderson will race in the Porsche Carrera Cup GB at Silverstone this weekend (14/15 October) as part of a feature for the Fifth Gear motoring programme on Channel 5.Butler-Henderson will race the Vertu-backed VIP car in rounds 19 and 20 of the championship and is relishing the chance to sample the latest 997-model 911GT3 Cup car. So far, her only experience of racing a Porsche was back in 2003 when she tackled two rounds of the Carrera Cup at Brands Hatch.The TV presenter and journalist, who has considerable sportscar racing experience, will be followed by TV cameras throughout the Silverstone weekend.