The Britten any day. The only incarnation of the NR750 that would get a look in is the #90 bike that ran in the experimental class at the Le Mans 24h in 1987 - until looking closely it was a carbon copy of the all-conquering factory RVF750s, including the Rothmans paint job. On track it was like watching a MotoGP bike out with the Moto2 field… The RVFs made a class-leading 135 or so bhp, and the NR was de-tuned to 156bhp for Endurance (from sprint trim of around 170bhp). I’ll see if I can find a photo of it. In the race it only lasted about 4 hours before abandoning with big end trouble, but it was great to see while it was there…