The third generation BMW 3 Series came to Britain in spring 1991. The bodywork was very aerodynamic which included the fared-in front headlamps. When they were first introduced the petrol-powered saloons BMW offered a four cylinder 318i, six cylinders 320i and a 325i. An entry-level 316i four-cylinder alternatively followed the second quarter of 1991. Once diesels were introduced they became a key part of the saloon range, this was because of the smooth 2.5-litre six-cylinder turbo diesel model...