well the ride height and ground clearance will be the same... what it will look like is more like a police car... cuz your tires will be a lot wider than your rims...
I have P7000 225/55/16 on my car... I think it looks way better, and a nice bonus is that you will never scratch your rims.. you can curb it however you want it
but seriously, the handling and braking performance will be a lot better compared to stock tires. The steering will get a little heavier, which is good IMHO... provides more communication at the same time...
So I would go for it if you want to stick with stock rims... if you get 17 or 18 rims, then it's even better of course...