GM'S DIESEL FULL-SIZE SUVS' COMBINED MPG BETTER THAT OF THE MUCH SMALLER INFINITI Q60 COUPE'S

We already knew the next generation of full-size SUVs from General Motors—including the 2021 Chevrolet Tahoe, Chevrolet Suburban, GMC Yukon, and Cadillac Escalade—are due to offer a diesel engine option. Now, though, we know just how efficient this powertrain makes the big three-row SUVs—or at least two-wheel-drive iterations. © Motor Trend Staff 2021 Chevrolet Tahoe LT 2 The 2021...