225 x 4 tires

[Topless]

Pluses:
1 light weight. Lower cost.
2 you can rotate front/rear for longer life.
3 if they are low profile your effective gear ratio will be lower and your car will also have a lower CG.

Minuses:
1 Smaller contact patch, less maximum available dry traction.
2 Car will tend to oversteer. (can be dialed out with adjustable sway bars)

If you often Auto-X in the rain (Seattle) this might be the setup for you providing these are good wet traction tires. You didn't mention brand or size. On dry days you are going to give up a little to the guys with more rubber on the road. Let us know what you decide.