S - standard/sports (steel) suspension - datum ride height
S - air suspension - normal mode - ride height 15mm lower than datum
S - air suspension - low mode - ride height 25mm lower than datum
GTS - standard/GTS sports (steel) suspension - ride height 15mm lower than datum
GTS - air suspension - normal mode - ride height 25mm lower than datum
GTS - air suspension - low mode - ride height 35mm lower than datum
What I'd like to know is whether the GTS steel springs are simply shorter than the springs fitted as standard to the S cars (ie: shorter but the same rate) or if they are also stiffer than the standard springs (ie: shorter and have a higher spring rate). i think i've picked up that, in both cases, the springs are linear (not progressive rate).
Can anyone advise or confirm?
James