We recently bought an Auto Sleepers Warwick XL and on the day of collection the dealer turned around and said 'we've just realised the previous owner was disabled and therefore it affects the tax on the vehicle but we can get that changed'. We proceeded with the purchase and on receipt of the log book sent it off to the dealer to address the problem with DVLA as requested. DVLA have now sent a replacement log book and a separate letter saying there is nothing they can do other than register it as a diesel car. With its emissions at 226g/km this equates to annual road fund of £555. Is this changeable in anyway despite what DVLA says. Would we have the opportunity to reject the van as its more than double what we were expecting to pay. We also tried registering it with the Dartford Tunnel but due to its tax status we are unable to because I believe of the disabled driver status. Any thoughts would be much appreciated.