It's been decades since GM released a diesel engine in a U.S. passenger car. Now, with the Chevrolet Cruze Clean Turbo Diesel, it's back in the game. On deck to answer all our questions is Josh Tavel, Vehicle Performance Manager for Chevrolet Small Cars. Plus, we'll be delving into the big news of the week and the questions racking our brains. Did the auto industry bet wrong on small displacement turbos? What happened to Nissan's partnership with the revolutionary DeltaWing race car? Joining John McElroy in studio to talk about all that and much more, is Peter De Lorenzo, the Autoextremist, and Gary Vasilash from Automotive Design and Production.