The top-of-the-line model of the new open-top Audi A5 production series is the Audi S5 Cabriolet. The letter "S" stands for Sport - for dynamics, performance and power, but also for amazing efficiency.
The Audi S5 Cabriolet's engine is a newly developed, supercharged, three-liter V6. A supercharger in the space between the two banks of cylinders pressurizes the direct-injection 3.0 TFSI to up to 0.8 bar. Two downstream intercoolers reduce the temperature of the compressed intake air. Power peaks at 245 kW (333 hp); torque between 2,900 and 5,300 rpm remains constant at a generous 440 Nm (324.53 lb-ft).
The six-cylinder unit, which displaces 2,995 cc, exemplifies the Audi philosophy of intelligent efficiency - boost replaces displacement. The powerful thrust, the spontaneous response that is the result of short fuel paths and the aggressive engine sound make for a fascinating driving experience.
The open-top four-seater sprints from zero to 100 km/h (62.14 mph) in 5.6 seconds, only 0.5 s slower than the Audi S5 sedan, and accelerates up to a governed top speed of 250 km/h (155.34 mph). Yet at 9.6 liters per 100 km (24.5 US mpg), it is amazingly fuel-efficient.