I'm sitting 1/2 way between montreal and toronto - at my final hotel for this trip. I couldn't change my flight to toronto, so I ended up going back to montreal anyways, then driving 1 way to toronto. National gave me a grand cherokee at no extra cost - and it's the suped up one. GPS, leather, etc..etc. It's pretty good. The GPS is one of the better systems I've seen - unlike Hertz Neverlost, which should probably be called Hertz Neverfind (at least downtown in larger cities).
It was funny hearing the GPS say "Turn right after 300 kilometers"..:)