Bruce Nunnally Posted August 4, 2010 Report Share Posted August 4, 2010 WARREN, Mich. – For 30 years, engineers have used the GM Aerodynamics Laboratory to improve fuel economy by helping cars and trucks slip through the air more easily. View the full article Bruce 2023 Cadillac CT4-V Blackwing Follow me on: Twitter Instagram Youtube Link to comment Share on other sites More sharing options...
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