Funny thing happened to me when watching this video...I totally forgot which is that second car besides M 635 CSi .New 6-er is a great car,nothing new here to me..it´s really interesting to see progress of diesel engines in this comparo..same power and performance,but 50 percent less consumption..awesome .I bet when original 6-er series was developed no one would even consider to put diesel under the hood..but look now..times are changeing..for the better IMO .