content: The best answer seems to come from this article: "There were numerous functional challenges and limitations with the Turbine Cars, of which sluggish throttle response was the biggest. This is an inherent design limitation of turbines, as they need to spin up to over 40,000 rpm to develop full power. The Turbine Car had a one and a half second lag from first pressing the throttle. That could be considered dangerous; it certainly would by today’s standards. Throttle lag was noticeable at higher speeds too. Performance was reasonable, about 12 seconds 0-60, but substantially less than if a 383 V8 were under that sleek hood. One extended test produced an average fuel economy of 11.5 mpg. Not terrible, but far from good. A comparably-quick conventional car at the time would be expected to achieve about 15 mpg."