Sticking to the speed limit could save most vehicles approximately 7 miles per gallon, and removing things like roof racks can help improve aerodynamics.
Sticking to the speed limit could save most vehicles approximately 7 miles per gallon, and removing things like roof racks can help improve aerodynamics.
The electric Mercedes G-Class, BYD's first pick-up and Ora's 395bhp sports saloon are among the headliners
The Beijing..