Please tell me that the new concept truck is going to have only one diff and a liftable tag axle. Lift Tag with diff lock has more than enough traction for most of your driving conditions, and saves a lot of weight and has much less drivetrain losses. Scandinavian people has survived with them from the 60's, so it would be about the time that americans wake up and see the advantages too. Trailer could have liftable second axle too, wouldn't hurt to have only two tires rolling when empty.
Also, would such aerodynamic truck manage with electrical water pump and electric fan? I-shift has too proven its worth here. Also, are you familiar with the teardrop trailer?
Just playing with ideas here, let me know what you think.
