My CRV has 15" wheels, I used to put 225/60/15 yoko ultra high performance on them and I can corner to the point it almost roll over and the tires still stick on the ground and make no sound.
for highway performance, with the yoko i once hit 180km/hr and is still very stable ... the engine cut off the fuel is the only reason I cannot break thru 200km/h... the tires are good for 240km/h
A set of 4 of those yoko with installation is less than 700 tax included.
Now with two kids I am back on 215-65-15 Hydroedge but it still petty good in driving performance, I see NO reason to put anything bigger than 16" on a SUV, even my is a manual shift 5 speed.