Hi, I have Aurion AT-X, 2006 and currently using 215/60/16 tyres with alloys and thinking to inch-up to 17". The alloy wheels I bought are from Lexus IS 250 with two 225/45/17 and another one is 245/45/17 and the other one is wheel only ( I reckon IS250 is rear wheel drive, so 225 for front and 245 for rear). As the three tyres have road worthy treads, I think I will use the current tyres then buy the recommended size which is 215/55/17. If I buy only one 245/45/17 tyre, can I use these tyres for my Aurion? or if I need to use all same sized tyres, better buying two 225 tyres? Many thanks