The BMW 7-Series a full-size luxury sedan produced by the German automaker BMW since 1977.it is the successor to the BMW E 3 new six sedan and is currently in its sixth generation. The 7 series BMW s flagship car and is only available as a sedan or extended-length limousine.it traditionally introduces technologies and exterior design themes before they trickle down to smaller sedans in BMW s lineup.
The first generation 7 series was powered by straight -6 petrol engines, and following generations have been powered by straight -6, v 8 and v 12 engines with both natural aspiration and turbocharging.since 1995, diesel engines have been included in the 7 series range.