So I got my Sportline 280 back in December and have done about 1600miles now. We have always felt the suspension was harsh when going over speed bumps etc., going over a speed bump always gave a real bang and felt like you had hit something and bottomed out the suspension. But not noticeable on general driving.   Turns out we weren't going mad - the dealer hadn't done the PDI properly and had left the transport blocks in. One on each side one mine - some googling suggest some models ha