Bump! Price reduction!!

Sounds like like shock absorbers would be the logical choice, as classic under-dampened spring behaviour​.

Stiffening the rear may make this behaviour worse, but it is probably easier to test before committing to the damper option.

Mal

Update: Price reduction!! Here I have 4 x Compomotive AT Road 15x6 et38, with 3.75" PCD. I purchased these back in 2000/01, but never fitted to my GTI. As was the "received wisdom" on PMC back then, two of the rims were fitted with part-worn 195/45R15 tyres to clear the rear trailing arms - tread de...