man up in your 4runner, you should be able to do 80 with 33's
Why have the runner if you're gonna bring the car anyway.
I don't see how the car is that much more comfy than the runner unless the seats in your runner are trashed. Your heater works, right?
As far as doing 80MPH.... if you're in that much of a hurry just leave earlier.
Don't get in a rush, that's how things go bad.