Koenigsegg upgrades the Agera R to 1140 bhp

Already one the world's fastest cars, the Koenigsegg Agera R has been reworked for the 2013 model year, raising peak horsepower from 1115 to 1140 bhp, giving it a top speed of 440 km/h (273.4 mph) - Koenigsegg intends to prove it sometime soon. The world's fastest production car is the Bugatti Veyron Super Sport at 431 km/h. Lots of new features in the new ca