Dear all newbee looking for advice. I recently purchased an E46 320i 2.2 M sport in silver on a 05 plate nice car. When inspecting the car before I bought it i only checked the trad on the tyres and not make or size although the tread was very good so never gave it much thought. The car has a steering issue and I am in the process of eliminating the problem.on inspecting the tyres I have noticed alarming issues. The front tyres are FALKEN & PIRELLI 225 x 40 x 18,,,,,, the back tyres are BRIDGESTONE 255 x35 x 18 this is a run flat tyre ,,,, the other tyre is a Chinese make 255 x 35 x 18 a non run flat. I want to change all 4 ASAP but I don't want to waste £££ and would like some advice as to what size for the rear and which make of tyre. Many thanks for any help in this issue.