PetrolPrices.com is a website I've recently come across. There you can find the cheapest petrol station near your post code. Having just passed my driving test I thought I'd have a look at how much it costs to run a car... Answer: TOO much. If I could live in it and not have to pay rent then maybe. That's actually what this person had to do for a while. Now her blog is being made into a book!