Racing seats for your E24/E28
I installed a bottom mount fiberglass seat in my 535is because the stock sport seats left me with no headroom while wearing a helmet at driver schools. I wanted the ability to put the stock seat back in for the winter months so that ruled out hacking/welding/cutting around the stock seat mount locations. I made brackets from steel angle and drilled holes to match the stock bolt locations. I even drilled holes to mount the stock seat belt brackets so I can wear the stock 3 point belts while on the street to avoid extra attention from the municipal, county, and state tax collectors. The bucket seat allows me to sit up straight and is actually more comfortable for me on long trips than the stock sport seat.