HOUSTON, Texas - The Hennessey Venom GT is a Texan-built supercar powered by a 7.0 V8 engine developing a whopping 927kW.In January it showed the world just how quick it was when the Venom graced a runway in Houston, USA, to attempt a new world record for acceleration.The Venom GT rocketed from 0-300km/h in 13.63 seconds.GOING FOR THE RECORDGuinness World Records were there to verify the time - with Hennessey taking the record from the similarly outrageous Koenigsegg Agera which did 0-300km/h in 14.53 seconds.The R13-million supercar also managed 0-321km/h in 14.51 seconds - a staggering 7.7 seconds quicker than the Bugatti Veyron Super Sport (22.2s).Flat-out the Venom GT, which was piloted by test driver John Kiewicz, did 0-160km/h in 5.88 seconds and after one-mile had reached 330km/h.WATCH THE VIDEOJohn Hennessey, the boss of Hennessey Performance, today revealed he was going after the record for top speed, which is currently held by the 431km/h Veyron Super Sport.The firm will have its work cut out to find somewhere to hit this speed - with Bugatti having special access to Volkswagen's Ehra-Lessien test track in Germany.Hennessey said: "We are exceptionally proud of our team at HPE who helped to make this new Guinness World Record possible. It was a great moment, but this is just the beginning and we plan to set a few more speed records as part of our Venom GT validation process."We are in the process of looking for a runway or toll road long enough to make some top speed runs. A flat four mile stretch of road would be ideal and we're confident the Venom GT will do 434km/h and more."Hennessey plans to build just 29 Venom GTs with each model taking six months to build.The firm has sold ten models so far with Aerosmith frontman Steve Tyler owning a convertible edition.