Going Two Wheelers To Cut Costs?

With the price of oil going skywards and the cost of our petrol aiming to go in the same direction, someone suggested we should go on two wheelers to cut costs. 

I'd still think twice about the motorbike.  Years ago I rode one when gas was cheap but cash was harder to come by and I was a lone-ranger.  I kept getting knocked down, and I remember that the 5 mishaps out of 6 times within the 15 years that I rode the bike weren't my fault.  I was lucky I didn't lose any limbs or worse, my life.  But I hate being vulnerable.  And that was the traffic volume of twenty or more years ago.

Well I've knocked and I've got knocked into about the same number of times since I upgraded to driving a car, but at least it only cost me money.  

I decided money can't buy back any limbs or life when one gets knocked off a motorbike judging by the number of fatalities from this sector these days.  I'd rather spend the money and be a lot safer (by percentages) in the car than out there on two wheels with no walls between me and those killing machines whizzing about every which way.