These things tend to go for big money these days, so if you don't mind left-hand drive, you might want to check out this early 1970s Fiat 500L.
The car dates from 1972 and is being sold due to a move of house. Previous to the current owner, the car was owned by a Naples garage, which raced cars. Because of that, this Fiat has had a number of modifications.
The car has been checked and the upgrades, according to the seller, have been done to the right standard. See the site for the full and exhaustive breakdown of modifications. Other work has also been done by the current owner, again listed on the site.
The mileage is just 10091km, which is 'because of the Italians doing the full works on the engine'.
The price being asked is £3,750 on a 'buy it now' or you can make an offer if you fancy paying a little less.