Top speed

The manufacturer's stated maximum speed, which may be a technical maximum or a set limit. Posted speed limits still apply, so compare it after range, price and practicality.

Top speed is the maximum speed the manufacturer says the car will reach. The figure may be the car's technical maximum or a limit set by the manufacturer, and spec sheets do not always say which, so treat it as a spec, not a promise.

Posted speed limits apply whatever a car can reach, so the number describes a capability rather than a legal speed. On CarPairly it is one row in the specification table, best read after range, price, and practicality.

The site stores top speed in km/h and converts to mph for US and UK display. The conversion factor is exact: NIST lists one mile per hour as 1.609344 kilometers per hour, so 100 mph is 160.9344 km/h.

Differs by market

Shown in km/h or mph depending on the market (1 mph = 1.609344 km/h, NIST SP 811). Posted speed limits apply whatever the figure.

Back to the glossary