New Porsche Carrera GT cars are powered by 5.7 liter V10 engine that entirely new DIN 612 (605 SAE) horsepower (450 kW), while the original concept car with version 5.5-liter rated 558 hp (416 kW). Porsche claims it will accelerate from 0 to 100 km/h (62.5 mph) in 3.9 seconds and has a maximum speed of (more…)