g-machine
 n.— «The 911 eclipses the mile-a-minute mark in 3.9 seconds, having used less than 200 feet of roadway to do so. In short, Porsche’s turbo thruster is the most efficient g-machine Poular Science has ever tested.» —“A sustained blast. (1996 Porsche 911 Turbo)(Evaluation)” by Don Sherman Popular Science Oct. 1, 1995. (source: Double-Tongued Dictionary)