I just finished autocrossing my 240 DL last Sunday in the H-Stock class. One of the requirements of the class is that everything on the car be either standard or optional equipment from the factory (dealer installed options are not allowed).

The few things that are allowed are a replacement of the stock catback exhaust system, any non-performance enhancing gauges, as well as a K&N drop in filter (there are a few other things you can change, but not many).

Another thing you can do is swap parts between models of a certain year, provided that the equipment was optional (e.g. AC system, power windows, etc.). Well, I just autocrossed with some Turbo rims on the car, and I need to know whether the turbo rims were an available option on a 1984 240 DL with the B23F in it. I called the dealership, and they thought that the wheels were optional on all models, but I need some clarification and possibly something in writing if available. Hopefully they were optional and I won't have to bump up to F-Street Prepared, although the Volvo did finish 3rd and 6th in PAX time out of 51 entrants, not bad considering there were Porsches and Corvettes we beat.