RUF Built a Flat-Eight. Nobody Else Did.
1,000hp, six-speed manual, zero hybrid — RUF just built the boxer-eight engine Porsche never dared put in a road car.
The B8: 4.8-litre twin-turbo flat-eight, 1,000+ hp and 1,000 Nm, in a stretched CTR3 mule called 'Erprober', driven by Tanner Foust up Goodwood twice daily. No production car confirmed yet. Rennlist thread consensus: 'most exciting thing to come out of Goodwood in years' — the dissenting voices just want to know when the actual road car arrives.
Porsche campaigned flat-eights in the 904/8, 907 and 908 through the early 1970s, then retired the layout as too wide and too awkward to package in any road car. RUF, the fiercely independent Bavarian firm, looked at that history and decided to write a new chapter. The B8 — Boxer 8 — is a bespoke 4.8-litre twin-turbocharged horizontally-opposed eight-cylinder producing over 1,000hp and 1,000Nm with zero electrification. Critically, it drives through RUF's own six-speed manual gearbox. The development prototype is a CTR3 stretched 100mm to swallow the engine, nicknamed Erprober (German: tester), wearing a Blossom Yellow livery riffing on the legendary 1987 Yellowbird CTR with flowing figure-eight graphics designed by Aloisa Ruf. Tanner Foust ran it up the Goodwood hill twice daily from Friday through Sunday. Alois Ruf said: '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.' No production car or timeline has been confirmed — the Erprober is purely a powertrain testbed. But this is RUF: when they build a test mule this complete and run it at Goodwood, a production car is coming. At this output, with a proper manual and air-cooled heritage, the waiting list will not be short.