BMW 4-Series and 8-Series to merge into new 6-Series?

With every man and his dog keen to park an SUV or pickup on the driveway, sales of more traditional car types like sedans, coupes and convertibles are on the decline. This extends to the luxury segment where we might see BMW replace both its 4-Series and 8-Series with a new 6-Series as a response. Yes, according to the sources of Australia’s Which…