bmw-e21-3-series-red The E21 3 series was introduced in 1975. It replaced the 02 series. There were three models available: 316, 318 and 320. All models had a four cylinder engine. The 320 had double headlights and 109 HP. The 316 had 90 HP and the 318 98 HP. At the end of 1975 a 320i came available. This model had mechanical fuel injection. In 1977 the 320 and 320i where replaced by a new 320 with a six cylinder engine. Also new was a 323i six cylinder with 143 HP. In 1977 Baur introduced their...