After purchasing my MX5 Mazda seats, I had them totally stripped, re-padded and covered in Connolly leather. Unfortunately, I wasn't aware at the time that my R.M.C. body was so narrow in the floor area where the seats were to fit. They went in, but were extremely tight.
Recently, we decided to partially strip them again and instead of having an adjustable backrest, it was made a permanent fixture by welding the seat frame to the backrest frame and removing all the adjusting handles which were once fitted to the side. The original flat side bracket was covered in matching leather, the seat slide was removed and the seats bolted onto the floor, as far back as we could get them.
Problem 1. solved perfectly.
Problem No. 2. Since having the seats covered originally, the ADR's were changed in respect of seat backrest height. At that time, they measured 780mm and the new requirement was a minimum of 850mm. To overcome this problem, new headrests were constructed and covered to match the seats. Hopefully, I won't have any problems when I eventually get to Engineering.