Cheap to run to me is reasonable fuel costs so I doubt one of these will have the kind of mpg as a gas guzzling scooby or skyline, cheap to insure for me anyway, and cheaper tax as these come under the cheaper tax bracket being under 1600cc. As said above all work will be done by myself.
You don't include running repairs as cost of running a car? How easy is it to source parts for these anyway?

