What is the top speed of the 1991 Acura NSX?
The top speed of the 1991 Acura NSX is about 168 mph (270 km/h).
The 1991 NSX, powered by a mid-mounted 3.0-liter V6 producing roughly 270 horsepower, was engineered for a balance of performance and everyday usability. While its top-end figures were impressive for the time, Honda designed the car to emphasize handling, responsiveness, and driver experience as much as straight-line speed.
Performance figures and testing
During the early 1990s, several automotive outlets tested the NSX to determine its top speed. The consensus figure hovered around the high 160s mph, with 168 mph (270 km/h) commonly cited and occasional reports of slightly higher numbers under optimal conditions.
- Most contemporary tests reported top speeds near 168 mph (270 km/h).
- Under ideal conditions with proper tires and testing methods, figures approaching 170 mph (274 km/h) were sometimes noted.
In summary, the top speed is widely reported as approximately 168 mph (270 km/h), with minor variations based on testing setup and conditions.
Test methodology and variability
Top speeds on the NSX varied due to factors such as aerodynamics, tire choice, ambient temperature, elevation, and whether the fuel and gearing were optimized for maximum speed. The 1991 model used a mid-mounted V6 and a traditional manual gearbox, designed for a balance of performance and responsiveness rather than unrefined top-end sprints.
What affects the top speed
Several elements influence observed top speed in this era: aerodynamic drag, overall weight, engine output, and gearing. As with many early-1990s supercars, small differences in tires and road conditions could shift the measured top end by a few mph.
Summary
In practical terms, the 1991 Acura NSX could reach about 168 mph (270 km/h) in favorable conditions, making it one of the fastest production cars of its time while prioritizing handling and daily usability. The figure has stood the test of time in automotive reference material, though precise numbers vary slightly with testing method.
Notes for readers seeking deeper context
For readers seeking precision, consult period road tests from Car and Driver, Road & Track, and Motor Trend from 1990–1992, which document similar top-end figures for the NSX in stock configuration.
