Mystery Benz Caught In The Wild - But What Is It?

Our honorary spy at large Fred Khaz is at it again with those extra sharp eyes, this time spying a new Mercedes-Benz wagon with Michigan plates.

What is different about that you ask?

It is minus an exhaust system. Why would you be missing the exhaust?  That is unless you don't need it (Electric?) or are hiding something more sinister (upcoming AMG version?).

Check out the shots below and give us your best guess as to what this mystery Benz might be:

vdiv - 10/8/2012 3:35:08 PM

+2 Boost

I believe I do see exhaust tips that curve down below and inside the rear bumper on the first picture. It could be just a mule.

Always wondered what would happen if one of these test cars was in an accident or pulled over.

richard112360 - 10/8/2012 4:48:03 PM

+2 Boost

It's a diesel Mercedes wagon. I've seen lot's of 'em on my frequent visits to Germany.

HardVato - 10/8/2012 4:51:30 PM

+3 Boost

Station Wagon. Any other brain busters?

Car4Life - 10/9/2012 1:49:27 PM

+1 Boost

Hybrid E Class being introduced with revamped model, testing battery/drivetrain

thekoolio - 10/10/2012 5:08:51 PM

+1 Boost

its obviously an e class estate(station wagon) judging the exhaust setup it looks like a 350 model

350zdon17 - 10/10/2012 6:32:50 PM

+1 Boost

Is it a BMW?