My oem tire sizes are 225/40/18 for the front and 255/40/18 for the rear. I need new tires and want to get 275/35/18 sized tires for the rear, but want to keep the original size for the front.

Will this cause any issues with my vehicle? I am aware of the couple % difference in mileage/speedometer readings, but my question lies more with the actual handling and performance of the vehicle.