Ian's car weigh's in at 1146kg with fuel,17/225+17/255 rims/tyres, kw coilovers(all steel),brake upgrades and some fair weight reductions(but all steel panels) and is street registered. It is a NA with the the s54 gearbox.
With the conversion, it will save 30kg. With the 15 or 16' rims and tyres with 235 tyres will also save close to 10kg. If its a hardtop, there is another 30kg to save so it is possible of a sub 1100kg SW20.
Will be keeping a close eye on the results of the conversion.