Full Breakdown
Ruf Unveils the B8 Flat-Eight Engine at the 2026 Goodwood Festival of Speed
7/10/2026, 5:27:46 PM
Background & Context
Ruf Automobile, the German family-owned tuner that began as a bus-conversion shop in the 1950s and later gained fame for Porsche-based hypercars such as the 1987 CTR “Yellowbird,” used the 2026 Goodwood Festival of Speed to showcase a power-train that has never appeared in a production car. The event, a magnet for manufacturers and collectors, provided a stage for the company’s first horizontally-opposed eight-cylinder engine.
Key Figures & Groups
- Alois Ruf – Chairman, owner, and founder of Ruf Automobile.
- Marc Brunner – Chief engineer responsible for the B8 engine development.
- Tanner Foust – Rally, stunt and former *Top Gear USA* driver who will pilot the test mule during the Supercar Run.
Technical Specifications
Ruf’s B8 engine is a 4.8-liter, twin-turbocharged flat-eight boxer mounted rear-mid-engine in a lengthened CTR3 chassis. The company claims the unit produces over 1,000 hp (?986 bhp) and 737 lb-ft (?1,000 Nm) of torque, coupled to a six-speed manual gearbox. The chassis was stretched by 100 mm (?3.9 in) to accommodate the larger block, and the livery draws on the historic “Blossom Yellow” of the 1987 CTR.
Why It Matters
Flat-eight engines are rare in modern road cars; only Subaru employs flat-four layouts, while Porsche continues with flat-six units. By adding two cylinders to the classic boxer architecture, Ruf challenges prevailing trends toward electrification and demonstrates the feasibility of a high-output, horizontally opposed eight-cylinder design. The engine’s distinctive sound—described as a “guttural Detroit-tinged eight-cylinder growl”—also highlights the brand’s emphasis on auditory experience.
Official Statements & Responses
Ruf emphasizes that the B8 is a testbed for technologies destined for a future production model, noting that “all its cars begin life long before the world sees them.” The company’s press release describes the prototype as “not yet a production model but serves as a dedicated testbed for technologies that will shape a future Ruf model.” Ruf also positions the engine as a historic milestone, stating that “a boxer-eight has never been part of our story, or anyone else’s in this form, so we decided to write a new chapter in automotive history.”
On-the-Ground Reports
During the festival’s Supercar Run (July 10-12), the B8-equipped CTR3 will make two daily ascents of the Goodwood hillclimb, driven by Tanner Foust. Attendees reported hearing the engine’s “chugging idle” followed by a “guttural” roar as the turbos spooled, confirming Ruf’s focus on acoustic impact.
Conflicting Reports & Gaps
Ruf’s own literature cites “over 1,000 hp,” while Autocar specifies “more than 986 bhp.” No independent dyno results have been released, leaving the exact output unverified. Additionally, details on emissions compliance, durability testing, and a timeline for production readiness remain undisclosed.
Verbatim Quotes
- “not yet a production model but serves as a dedicated testbed for technologies that will shape a future Ruf model” — Ruf press release
- “a new chapter in automotive history” — Ruf statement at Goodwood
- “A boxer-eight has never been part of our story, or anyone else's in this form, so we decided to write a new chapter in automotive history.” — Alois Ruf, Chairman
- “Erprober” – German for “tester.” — Ruf technical documentation
What’s Next
Ruf plans to continue running the B8-powered CTR3 on the Goodwood Supercar Run through July 12 and will stream the runs on YouTube. The company has indicated that the engine will inform an upcoming, as-yet-unnamed production model, though no launch date has been announced.
