The 2020 Ram 1500 EcoDiesel marks the return of diesel power to Ram's full-size pickup truck after a brief hiatus. Ram is coming out swinging with 480 pound-feet of torque -- more than its Ford and Chevy rivals. The 2020 Ram 1500 EcoDiesel goes on sale in the fourth quarter of 2019.
The Audi A8L TDI, a diesel version of Audi's flagship, makes an impressive argument for compression ignition by beating luxury hybrids in fuel economy.