You left out what profile tire and what brand and model of tire you plan to use.
My informed guess would be that most tire brand 235/40/18 or 235/35/18s will fit up front. Maybe 10-25% of the brands will rub, mainly when going up over bumps and turning, like when entering a steep drive. In the rear 265/35/18 or 265/30/18 will probably rub with about half the brands of tires. It will mainly rub when weight is in the rear of the car, the most annoying rub will be when going over elevations such as bridges when at speed.
You can get that size tire if you stick with small running tire brands such as Falken, Toyo, or Nitto. You'd be in big trouble if you bought a big running tire such as most track tires.
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