The German car maker Ruf has unveiled a new engine, the B8, at the Goodwood Festival of Speed in England, firing it up in public for the first time. The B8 is notable as a flat-eight design, marking a departure from the horizontally opposed six-cylinder engines Ruf has used in its Porsche-derived models, and it signals the powertrain intended for the company's next generation of cars. The debut underlines how far Ruf has travelled from its origins as a Porsche tuner to a recognised manufacturer building cars of its own design.

Full technical specifications have not yet been released, but the 4.8-litre engine is said to produce more than 1,000 hp (745 kW) and 737 lb-ft (1,000 Nm) of torque. For the event it has been fitted to a lengthened CTR3 development mule dubbed the "Erprober" (German for "tester"), which was driven up the hill by racing driver Tanner Faust. Ruf's status as a distinct manufacturer dates back to the 1983 BTR, the first to carry a Ruf vehicle identification number, while the mid-engined CTR3 of 2007 and more recent carbon-monocoque models such as the SCR and Rodeo mark its evolution.