Mercedes-Benz C-Class S Cabriolet 2018

AMG has developed a high-output yet more compact engine for a new era of performance. The 503-hp 4.0L V8 biturbo engine is more responsive yet up to 38% more fuel-efficient than its larger predecessor. Its massive torque reaches its 516 lb-ft peak at just 1,750 rpm, and holds it all the way to 4,500 rpm, for a 4.0-second 0-60 time and instant acceleration at any speed. Yet even with its advanced design and technologies, each AMG engine is still hand-built and signed by its own craftsman. For better performance and packaging, the new AMG V8's twin turbos are placed inside the V of the engine. The layout sends the compressed charge from each turbo to its bank of cylinders via an extremely short path, with near-zero pressure loss or turbo lag. The high-pressure turbos spool up quickly to as much as 186,000 rpm. The setup is also highly efficient from intake to exhaust, with liquid-cooled intercoolers and close-mounted catalysts that reach peak efficiency in seconds.The AMG SPEEDSHIFT(R) MCT 7-speed transmission'