What is the top speed of the fastest automobile in 2015?
Porsche 918 Spyder The Porsche 918 Spyder is a mid-engined plug-in hybrid sports car by Porsche. The Spyder is powered by a naturally aspirated 4.6-litre V8 engine, developing 616 PS , with two electric motors delivering an additional 283 PS for a combined output of 899 PS . The 918 Spyder's 6.8 kWh lithium-ion battery pack delivers an all-electric range of 12 mi under EPA's five-cycle tests. The car has a top speed of around 340 km/h .
Chevrolet Corvette C6.R The Chevrolet Corvette C6.R is a grand tourer racing car built by Pratt & Miller and Chevrolet for competition in endurance racing. It is a replacement for the Corvette C5-R racing car, applying the body style of the new C6 generation Chevrolet Corvette as well as improvements to increase the speed and reliability on the track. Since its debut in 2005, it has continued on from the previous dominance of the C5-R in its racing class with multiple American Le Mans Series championships and race wins in the Le Mans Series, FIA GT Championship, and 24 Hours of Le Mans. There are two main versions of the Corvette C6.R: the GT1 version which has 590 HP, carbon ceramic brakes and aggressive aerodynamics, and the GT2 version which has 470 HP, iron brakes and relatively stock aerodynamics with respect to the road car. By 2012 the C6.R GT1 was retired from competition while the GT2 version continues to race around the world.