Hi all,
From memory the superlight and superlight R both had standard chassis, but with carbon and other performance items as standard, LSD/6 speed/light flywheel/big brakes/Avon tyres. Engines where options across the range. The only chassis mods were to the R500 which had lighter front cross members initially, but as many were spec'd with windscreen it negated the weight saving so I think they reverted to standard chassis if you spec'd a windscreen.
All as I say from the old grey cells, which are dying at a great rate these days!!
Cheers
Missing Sylvia ☹️