Greg, please take what
Greg, please take what follows as only half-serious: 1) Your 20 year old sports car likely outputs more CO2 per mile than a Ford F-150 Pickup EcoBoost (the most popular engine choice). You can check at www.fueleconomy.gov See the second tab when you look up your vehicle 2) England burned more coal per capita than perhaps any other nation ever did, or ever will. 3) Here in "Murica we make and have the most efficient vehicles on the planet. Some of us also use a lot of trucks, which drags down our average. We have open-spaces bigger than your country and that led to a big-car culture. No offense to England, just adding perspective.