Bmw 5 series cars are totally produced to achieve commercial markets. They are classified as executive brand cars. These cars are used for better performance both in terms of quality and quantity. The qualified engineers do hold the responsibility of getting better cars for the roads. Bmw E12 variants are the first model cars that were released under the brand names of Bmw 5 series cars. These cars produced good thrust with minimum slide friction. This enabled the cars to perform extraordinarily at the rugged roads.