Engine Coolant Thermostat Housing Dorman 902-109 on 2040-parts.com

Jay Leno tests the Venom GT

Five years ago, Hennessey Performance was locked in a high-horsepower battle with supercars from Germany, Italy and the United States. The car Hennessey brought was the Venom 1000 Twin Turbo Viper. After decimating the competition in 0-to-200-mph runs, John Hennessey thought if his company could just stuff the engine into a smaller car, it could go even faster.

2012 Porsche Boxster arrives in the UK. Price from £37,589

2012 Porsche Boxster - now in Porsche UK showrooms The 2012 Porsche Boxster – and Boxster S – arrive in Porsche UK showrooms today priced from £37,589. Porsche revealed the 2012 versions of the Boxster and Boxster S back in January looking, as you would expect from Porsche, much the same as the previous two generations of Boxster. Despite a familiar look the 2012 Boxster gets a comprehensive makeover with a sharper look thanks to shorter overhangs, a longer wheelbase and a wider track.

Supercar owners hire runway to find top speed

“What’s the point of owning a supercar,” some might say. “You’ll never be able to reach its full performance potential on the road.” And while that’s true, there is an alternative to risking your driving licence if you buy a car like the new McLaren 650S or Lamborghini Huracan. Essentially, someone hires a private runway, and invites a load of supercar owners to drive as fast as they can before running out of tarmac.