I had my car written off by a tractor driver who claimed to be going straight on the main road. (See AAmap showing the 90 gegree turn he was taking)This particular junction has many cars in accidents at the spot mostly caused by British Sugar traffic tractors tankers who would be with NFU so you are aware of the problems at that junction. You would I expect be equally aware of the issue of mud obscuring any road markings if on the road. I am informed by my insurer you may claim my fault. Your tractor driver had a friend(witness) who arrived 5 m8ns after he struck my car. The police were not involved when the pair realised I was a disabled pensioner they became racist and aggressive. NFU not impressed at all.