The Lotus 49 changed the face of motor racing. Driven by Jim Clark and powered by the V8 engine, it gave Ford their first Grand Prix victory, back in 1967. Thirty years on, Tiff Needell revs up the famous Cosworth. Meanwhile, Andy Wilman discovers Cold War cars from eastern Europe, such as the Wartburg and the Moskvitch, that are still up and running thanks to dedicated British enthusiasts.