Are you able to explain this strange deterioration in ride quality? I wouldn't have expected the suspension to "run in". This is the sort of information that makes me reluctant to place too much faith in a relatively short "test drive".

No idea mate but it's definitely got worse over time. First few weeks were ok. Might not necessarily all be due to the suspension tho. I'm also sure the interior rattles that have developed with age give the sensation of a crashier ride :-(

^^^^ that.

The suspension doesn't change, but the rattles do.

All part of the character. But to reduce rattles simple steps can be taken In lining the glovebox with a soft foam material.

Also the tyre pressures are paramount. A drop in even 2 PSI can affect the ride quality!