GM’s big SUVs improve towing power, city fuel economy
General Motors says its next-generation full-size SUVs can tow more and get better fuel economy in city driving than the current versions, despite being significantly bigger. But highway mileage decreased by up to 2 mpg.
source https://www.autonews.com/cars-concepts/gms-big-suvs-improve-towing-power-city-fuel-economy