With wheels, you are limited to what size tire you want to put on. When you go bigger in size without giving it the raked look (i.e. muscle car)
the next size up for you would be 2055516---2155016. that would be the next size. you might be able to go bigger, but you might have to get a bigger sidewall, then you cant rotate your tires. Then the fronts wear out and you have to buy new tires. That can get expensive. Also, you might have some issues with tires rubbing, you might be able to get a spacer and put a wider tire on, but that is up to you. If you put a wider tire on the car, you increase the footprint of the tire, which in-turn increases your chances of hydro-plaining. As for tires, get something that will channel the water a little faster, because a light car with wide tires can be dangerous.
toyo makes awsome tires.