I want to get one of these cars however, I don't want it if I can't slap some forced induction onto it. None of the BMW tuners make turbo kits or supercharger kits for this model BMW! Anyone know of a shop that fabricates kits?

You are driving a classic motor, your engine is 3x+ the size of mine and you have 3x the cylinders. messing with your engine can only wipe money off the value of your car. A BMW like yours will turn heads whatever you do. any problems with a conversion will wreck your motor.

Ha damn a turbo on that would be awsome...yeah it is perfectly possible to fab one up, but where or how idk you are just going to have to look into a good performance shop that dose that sort of thing

yes it is possible. I am not sure of any specific applications for that model, but you might try Jackson superchargers.

you might need to import something from Germany or england...

There were only 1,510 exmamples of the 850 CSi motor built, making the S70 B56 the lowest production engine in BMW history, therefore very few tuning options exist for this motor. However, with 375 HP and 405 lb/ft, why would you want forced induction at all? If you really want a turbo/supercharged 8 series, go for the 840 Ci, with the much more common and tunable M60 V8, whose variations are commonly found throughout the 5, 7, and 8 series ranges.