Hello All - I picked up my CLK 220 Cdi last week from MB Stockport and noticed that according to the official booklet,the car should have 205/55 - R16 to the front and 225/50 - R16 to the rear - in actual fact,they have 225/45 to the front and 245/40 - R16 to the rear.According to the booklet,these are normally fitted to the CLK 320/350 & 500 versions A couple of questions arise from this - these are marked Continental OM - (Original Mercedes) - but I guess it maybe the one previous owner changed/uprated the alloys from the official 16" to 17" ? - certainly MB Stockport did not say anything. So,how will fitting these 17" ,over the official 16" affect things like fuel economy,and handling,suspension and even insurance implications ? Second question - can I fit 16" steel wheels with winter tyres,should I choose to,if the weather dictates ? Thanks in advance.