Hello, I raced two 700 coupes in RMVR (Rocky Mountain Vintage Racing) club for many years. It is very interesting setting up the car and driving at the limit is great fun. FIA homologation papers basically how the cars left the factory. FIA allowed modifications as appendix k regulations for which group the cars raced in. SCCA in the USA the 700 coupes were in the D-Sedan class. Saab 850, NSU 1000, Fiat Abarth 1000, Austin Mini 970cc, Hillman Imp, BMW 700 were the same class.
In vintage racing clubs today there are very few under 1300cc cars to race with. So you will be grouped in the under 2000cc run group and be gridded by lap time. Safety is a must. Fuel cell, quality roll cage, race seat, driver suit, Helmet, fire system per your home club rules. Then you can travel and race most clubs nationwide.
The pros and cons of the BMW 700 are: Pros- light weight (about 1150 pounds) Plastic windows OK, Strong brakes, Great handling, reliable engine, 13x6 wheels with 185 60 13 race tires.
Cons-Need more power 55 to 60hp is about max. Hi top pistons around 80/81mms, boring 2 cylinders you can't add enough ccs. You need a super hot race cam and big valve twin spark electronic ignition (Fire 4 plugs at the same time!) heads. Some kind of improved oil cooling. Rev more than 7500rpm and the rods might go.
If you have a spare rough 700 body go for it and strip every thing out and cut as much metal out of it to get the weight down. Then add a minimal roll bar/cage makes the most difference.
Regards,
Kent
