Hi Geoff - I have ordered my TDi SE with the spare weheel option - we discussed it on here in the newbies forum (I think newbie here (with some questions). The problem with the sealant option is that it can get you home with a monor puncture but, and a very big but, you need a new tyre. Once you use the sealant, the tyre needs replacing. And as you say, a more serious puncture or sidewall damage means you need to be towed home. So for me, about £75 plus some loss of boot space was fair price to pay for the comfort of having a spare wheel. Others may feel differently, but we have all, I am sure, had punctures from time to time.