Mercedes 200E/300E

On sale: 1985 - 1995Price range: £1,500 - £5,000

Here's a car that manages to be understated, classy and a great family wagon all at the same time. The W124-generation Mercedes E-Class is legendary for its tank-like build quality, with some German taxis amazingly racking up well in excess of a million miles. 

Growing demand means that prices can only go one way. The Coupé and Convertible models are also worth a look if you’re after something more glamorous.

Future classic cars that could make you money

• Peugeot 205 GTi • Nissan Skyline GT-R (R32) • Ford SportKa • Mercedes 200E/300E • Honda Civic Jordan • BMW 325ti • Saab 900 Cabriolet • Porsche 944 • Alfa Romeo Spider • Subaru Impreza Turbo