This was the first design of seat for the GT6 models. It was fitted to MK.1 cars for both the UK & USA markets. It also was fitted to early MK.2 cars for the UK market and was not available in the USA for cars built after 1969. It was a fixed seat and had no provision for headrests. The seat is of a funny design in that it did not have a side bolster on the side near the transmission tunnel. There was a bolster fitted not to the seat but a separate padded piece which was bolted to the tunnel itself. If necessary this can be recovered separately. If you are replacing original seat covers you will definately need a new set of foams as the originals will now probably be all over the floor underneath the seats. Originally the side bolster foams were made from a moulded style chip foam which disintegrates over time. Check your seat straps too. We would recomend that you have these covers and foams professionally fitted as they do need care to get the right result. Contact us if you need advice.