Excellent idea. Bring on the congestion charge for anyone driving South of Bloor, West of Broadview or east of Royal York. Double the charge for all SUVs. Triple the charge for a Hummer or stretch anything.
What about the pick-up trucks that people drive (these are rarely work trucks)? Some pick-ups are V10s which use more petrol than almost any SUV. Why are these people always absolved? Minivans often use as much or more petrol than a mid-sized SUV. Heck, it's hard to tell the difference between a minivan and an SUV now, anyway.
Ahh, easy targets. They're so...easy.
That being said, I agree with road tolls, and i'm glad these taxes got passed (but not very happy). It's difficult to believe there was simply no more cost cutting available to the mayor.