XL tyres are suitable for estates, 4*4s and any larger (heavier) car. Basically, the sidewall is a bit stiffer, meaning that the tyre suffers less deformation in normal driving.

Looking at one of the tyre sites, that car does require a quite heavy load rated tyre (100) so an XL tyre would almost be standard.

Have a look at some van tyres, that is what I had on my people carrier and they have a great load rating and were at the time cheaper than the car tyres for it. They also lasted ages.

Got new tyres fitted this morning, pirille scorpion xl rated. Went to a local tyre place they wasn't as cheap as online but not much more expensive. So far so good they seem better in the wet than the Bridgstone duler hp tyres that were fitted they don't seem as skittish or tramline like the Bridgstone tyres did.