Man I am tired of walking around, i want some wheels....you pay a visit to your local rental agency and you are turned away because you did not get an International Drivers Licence. These are available through Canadian Automobile Association and the American Automobile Association.
Ok so you have that do you???
Well you will be on you ass when you find out how much your insurance rates are, if you are under 25 (normally) the rates will be huge, they may not cover you at all.
OK so you got the Licence, and you got the insurance huh?
Well when you drive off the lot and look at the prices of fuel in European countries as of today they stand:
In the UK: its 74pence per litre, 74 pence = 1.22 US.....there are 3.78 litres in a gallon, that is $4.61 US a gallon (give or take)
And that is just an example, so even if you get out of the lot, you will not get very far as a "budget" trav'la
Your better to take the bus