I am currently busy putting test data from old 'auto motor sport' magazines into a nice database. While doing that I noticed that the BTR 3.4 (of which I knew very little before) and the Carrera Turbo basically the same car only that the latter is using the Carrera body, whereas the BTR uses a broader Turbo body. Is that correct or are there other differences as well? And is this 'Carrera Turbo Ruf' the first stage of what would later be the famous CTR a.k.a. Yellowbird with 469 bhp? RUF PORSCHE BTR 3.4 (ams 22/84) Engine: 6 cylinder, 3366 ccm Power: 374 bhp Curb weight: 1169 kg V max: 281 km/h 0-100 km/h: 4.6 s Fuel: 21.4 l/100 km Spax: 3.86 RUF PORSCHE CARRERA TURBO (ams 03/87) Engine: 6 cylinder, 3366 ccm Power: 374 hp Curb weight: 1256 kg V max: 305 km/h 0-100 km/h: 4.8 s Fuel: 20.1 l/100 km Spax: 4.08
RUF Porsche Carrera Turbo that you refer to above is called "RUF BTR 3.4 Coupe - Lightweight" in the Marc Bongers book Porsche and RUF -Sportscars. It was made between 1983 and 1989 whereas the RUF BTR 3.4 mentioned above was made between 1987 and 1989. Apparently there were some minor differences like the battery and the lightweight version between 1986-1989 had wider wheels and tires than the heavier version: Lightweight BTR ----------------- 9J x 17/10J x 17 (wheels) 235/40 VR 17/255/40 VR 17 (tires) BTR -------- 8J x 17/9J x 17 (wheels) 215/45 VR 17/235/40 VR 17 (tires) Also, the lightweight version never had a RUF 6 speed while the regular BTR 3.4 had a 6-speed in 1989. Both above had CIS whereas the CTR had Motronic so I would say the CTR was a substantially different car.
