I’ve started looking for my next set of tyres for my T6.1 now I’ve had it a while. It’s a T28 with camper conversion & the standard 205/65x16s don’t fill the wheel arches properly & it squats a bit on its rear end. I’ll go for all seasons, but am struggling to find anything suitable. I read all these forums & nobody ever mentions the effect upsizing has on the accuracy of the speedometer. If I went to the 265/40x20 then at 30mph it’ll be doing 32 & 70 would be 75. Irisent to 255/40x19 it makes hardly any difference to overall diameter & is an available size for the cross climates I want.