by dapinky » Sun 02.04.2023, 10:02
First, my disclaimer........ I have never seen the sales literature for the Federal cars, so can neither confirm nor contradict anything quoted from it.
However, in the UK / EU / ROW cars (ie, anything other than Fed) I know that the early cars (according to literature I have seen) came with the half-leather, half cloth seats as standard, with the striped full leather as an option... which was nearly always taken up on the SE, and (according to some sources) was really a 'special order' on the NA as they were assembled with the cloth ones.
The Later SE/NA cars had the same 'basic' cloth seats, but with the Raven / Perforated leather as the option, not the stripe.
Now, I cannot find any reference to when the striped option became the raven option, but both my 1990 & (January) 1991 cars had the red stripe....... but my 1992 car has the perforated leather.
So, it would be fair to assume that it changed in 1991, and thus the Fed cars should all have the perforated version..... maybe it was the production of the Fed car which drove the change-over in the UK, I don't know.
Then we have the S2 cars which have a slightly different seat structure (metal base, not rubber diaphragm), and a whole host of seat covering options, usually single-colour but with or without contrasting piping.... the half-cloth still remained as the no-cost basic fitment all the way through production.
Of course, Lotus, being what they are (were?) would accommodate all manner of 'Special Orders', and the trimming department could do virtually whatever your chequebook could afford.