Ruf used the Goodwood Festival of Speed in England to unveil the B8 Erprober. This prototype represents the cutting edge of the German manufacturer's future supercars and demonstrates that the manual gearbox remains relevant in the high-performance segment.
B8 Erprober Prototype Details
Internally named 'Erprober' (which means 'tester' in German), this vehicle serves as a development platform to incorporate new technologies into the brand's upcoming models. The main attraction is the engine: an unprecedented 4.8-liter eight-cylinder boxer engine, the first in Ruf's history.
This flat-eight biturbo engine generates over 1,013 hp and exceeds 102 kgfm of torque, all without relying on electrification systems. An even more notable aspect is the coupling of this engine to a six-speed manual gearbox, a configuration extremely rare in vehicles exceeding the thousand horsepower mark.
Adaptation and Testing at Goodwood
To fit the powertrain, which is larger and wider than a six-cylinder engine, Ruf extended the chassis of the CTR3 by 10 centimeters. The CTR3, the company's supercar with its own body and structure, was displayed in 2007. The selection of the CTR3 was a strategic decision, as it allowed for discreet testing of the new engine's limits during the development phase.
During the event, the prototype will complete six hill climbs on the traditional Goodwood hill climb, distributed over two stages per day, from Friday (the 10th) to Sunday (the 12th). The driver responsible for operating the car will be Tanner Foust. The vehicle sports an exclusive paint job developed by Aloisa Ruf in collaboration with Optima Batteries; the yellow tone alludes to the iconic 1987 CTR Yellowbird, while the graphics repeat the number eight, referencing the cylinder count.
Historical Context and Future Prospects
Eight-cylinder boxer engines are extremely scarce. Although Porsche used such engines in race cars in the 1960s and 1970s, such as the 908 and 907 models, it never implemented them in a model intended for public road use. Ruf itself built its reputation with flat-six engines derived from the Porsche 911, maintaining this aesthetic in the brand's DNA, given that the CTR3 uses the front structure of this German sports car.
Following this tradition, Ruf has always maintained small-scale production; for example, the Yellowbird was manufactured in only 29 handcrafted units. Although Ruf has not disclosed the launch date for the production version, the fact that the engine is already running in an operational prototype indicates an advanced stage of development. If the specifications reach the market, the new supercar should significantly surpass the CTR3 Evo, the brand's currently most powerful car, which produces approximately 811 hp and does not have a manual gearbox.
