I have a 2011 Sport S573 DS which has been upgraded by Adria pre delivery to 3500kg from the original Fiat base of 3250kg. Its a lovely van but a bit of a rough ride on some roads. The stated front axle load is now 1850kg and the rear 2000kg. On a visit to the weybridge with the van fully loaded (ie Fuel, water, provisions etc) the front axle weight was 1560kg and the rear 1550kg. My questions are; What did Adria do to the suspension to enable a higher load?, and What tyre presures should I have (ie bearing in mind the difference between capacity and expected load) with my Continental 215/70/15 cp 109 tyres? I have looked at the useful Tyre Information Item on our forum and it seems that lowering the tyre pressures to 60psi on front and rear might be suitable. Am I correct?