The new Caterham 620R meets its rivals, the new Vuhl 05 and the KTM X-Bow, on the Goodwood Hillclimb. But which of these lightweight sports cars looks the most exciting?br SUBSCRIBE to Goodwood right here - br For the full story, go to br The cars: br Caterham 620R - 311hp at 7,700rpm, supercharged 2.0 liter Ford Duratec engine, 0-60mph in 2.8 secsbr br Vuhl 05 - 285bhp, Ford turbocharged 2.0-litre EcoBoost petrol engine and 0-62mph in 3.7 seconds with a 152mph top speed.br br KTM X-Bow - 237bhp, 2.0-litre TFSI engine from Audi, 0-62mph in 3.