BMW 5 series E34 history and specifications - BMW Guide In the North-American market the E34 succeeded the BMW E28 in May 1988 with two models. The 525i used the BMW M20 engine while the 535i used the larger M30. The cars were a blend of BMW tradition and modern technology. E34 models - BMW E34 5 series Website The E34 5 series was introduced in 1988. It was available as 4 door sedan. There were five models available: 520i, 525i, 530i, 535i and 524td. All models received the engines frome the old E28 5 series. Only the 528i was replaced with a 530i wich had 188 HP. The 525i received the six cylinder from the 325i so it now had 170 HP.
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