In 2010, BMW overtook Mercedes Benz as the best selling luxury car manufacturer in India for the first time. But Mercedes has no intention of going quietly into the night. Their line-up now features the all-new E Class, as well as the newly Introduced 7-seat GL SUV. But leading the charge is a refreshed, and lengthened, flagship 8 500L.The wheelbase of the 8 500 has been stretched by 13