Peter,
I just checked mine. It is an 2006 S1 with AVO shocks.
N/S 20.4cm OS 19.7cm. Not easy to do as the car is in the garage and my drive slopes so probably would not give the right result.
But this seems similar.

Would be interesting to know what the spec is.
The car has alloys.

It doesn't bottom out at the rear (Ooh vicar)
John

JohnV6
2022 CX Plus Four
2025 MG ZS EV aka Trigger