World’s First Rear-Engine Carbon Monocoque Road Car
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Revered sports car manufacturer RUF Automobile GmbH unveiled the latest generation of its famed CTR halo car today during the 87th Geneva Motor Show. This is the first RUF sports car to be based on a chassis completely of the firm’s own design with a body that pays tribute to the 1987 CTR “Yellow Bird.” “The concept for the 2017 CTR is one that I have had in my head for a very long time,” said Alois Ruf, President and owner of RUF Automobile GmbH. “We have been waiting for the right point in our history to build our own car and the 30th anniversary of the CTR ‘Yellow Bird’ is that moment.”
New Chapter in a David and Goliath Story
Entering its fourth generation, the latest high-performance RUF supercar pays homage to the 1987 CTR Yellow Bird in both form and function. A weight-to-power ratio of only 3.5 lbs per horsepower, a first-ever rear-wheel drive bespoke carbon fiber monocoque chassis and an incredibly powerful engine are only some of the ingredients that make the latest CTR such a compelling work of automotive art. Design inspiration comes directly from the 1987 Yellow Bird’s focus on aerodynamic efficiency. The silhouette, narrow body, rear air inlets and fascias are all direct nods to the company heritage. The body, now formed in carbon, calls back to the original car’s flushed look. Center-locking 19-inch forged alloy wheels complete the design wrapped in tires measuring 245/35ZR19 in the front and 305/30ZR19 in the rear.
Powerful, Traditional and Thoroughly Modern
Technological sophistication starts with the skin, which is made completely of carbon fiber. For the first time, the chassis beneath that surface – also made of carbon fiber – is a bespoke monocoque, a proprietary RUF design. The front and rear crash structures are built with lightweight, steel as is the integrated roll cage that are both designed to maximize occupant safety. In total, the extensive use of modern materials allows for an extremely light dry weight of 1,200 kg (2,640 lbs). Like most RUF works, the 2017 CTR uses a rear-engine powertrain layout. The 3.6-liter twin-turbo flat-six is built by RUF and inspired by the design of the engine in the original Yellow Bird. To that end, it uses a dry-sump lubrication system to provide constant oil supply and pressure during extreme cornering. Total output is 522 kw (710 PS) at 6,750 RPM and 880 Nm (649 lb-ft) at 2,750 RPM, allowing acceleration from 0-100 km/h (62 mph) under 3.5 seconds and 0-200 km/h (125 mph) under nine seconds. Top speed is 360 km/h (225 mph). In order to truly pay tribute to the Yellow Bird, the latest CTR will be available exclusively with a newly-developed six-speed manual transmission that sends power to the rear wheels through a limited-slip differential. “We began development on the new CTR five years ago with the goal of creating a thrilling, analog driving experience that combines an amazing power-to-weight ratio, manual transmission and modern racing technology,” said Estonia Ruf. Ensuring excellent handling characteristics, the 2017 CTR uses double-wishbone suspension arms in a pushrod configuration for both the front and rear axles. Internally vented and perforated carbon ceramic brake discs (380 mm front, 250 mm rear) clamped by six-piston fixed calipers (front) and four-piston calipers (rear) offer maximum stopping power and enduring fade resistance.