My dad needs new tires for his 04 G35 Coupe with OEM 17" wheels. I wasn't that impressed with the tire choices in the factory sizes, 225/50-17 Front and 235/50-17 Rear. What other sizes can be used on the OEM 17" wheels? Will 235/45-17 Front and 245/45-17 Rear fit without any issues?

Also, what do you guys recommend for a sporty all-season tire with good treadware? Right now I'm looking at the Pirelli P-Zero Nero M+S.