Can't make up my mind on tires sizes for my wheels that are 18X9 all around. Torn between 245/40 front 275/35 rear or the other option of 255/40fr. 285/35r. Last option is 275/35 all around (not big on 275's on front & don't want 265's). The two concerns I have are the 245/40's being to small & the 285/35's being to large for the 9 inch rims. I know all tires are sized different some big some small. Car is a Sunday cruizer. All input will be greatly appreciated.