Blizzaks are winter tires, so not sure what you're looking for exactly... 
So far that is the most aggressive tire in that size I can find. It is almost ok, I want an on/off road tireBlizzaks are winter tires, so not sure what you're looking for exactly...![]()
I’m running those sizes in Yokohama’s. Definitely had some rubbing up front until I put in ED springs. No more problems.There doesn't seem to be much choice in All-Terrain tires that would fit the Smart car, but I have seen these listed on the Pirelli website:
Pirelli Scorpion ATR 205/60R15 91H
Pirelli Scorpion ATR 185/65R15 88H
These sizes would fit the 4.5J front and 5.5J rear rims on the 451. 185/65R15 on the front would rub quite a bit until the plastic wears down.
You might need a lift kit if going off-road to give a bit more ground clearance. Traction should be good as almost 60% of the car's weight is over the driving wheels.
thanksI’m running those sizes in Yokohama’s. Definitely had some rubbing up front until I put in ED springs. No more problems.