Read James Ruppert's book 'Bangernomics', which you can probably still get on Amazon. Generally it's best not to look for a specific car but instead to look for one in good condition, one owner and a car generally shunned by the market because of its styling or because it has bumps and scrapes. You don't worry about a few scratches on a £1,000 car. You do worry about the state of the engine, clutch, gearbox brakes, etc.For any car you find, read the entry in www.honestjohn.co.uk/carbycar to find out what specifically to look for.