Some cars, mostly fuel-efficient models like the Toyota Prius family, Nissan Leaf and Ford Fusion Hybrid, have done away with a tachometer altogether, but automakers are also incorporating new ...

Some cars, mostly fuel-efficient models like the Toyota Prius family, Nissan Leaf and Ford Fusion Hybrid (pictured below), have done away with a tachometer altogether, but automakers are also ...

Porsche also still uses beautiful analog tachometers in all its cars, save the all-electric Taycan. What's frustrating is that these automakers could create non-traditional, ...

Digital gauges first started showing up in 1980s cars to varying degrees of success. Automakers pushed hard for them, but the trend all but died in the 1990s. In the 21st century, though, digital ...

Many cars have a tachometer to indicate engine rpm, usually measured in thousands. At the top of the tachometer range is a zone called the redline — usually highlighted literally, with a red line.

All vehicle tachometers will have a redline that typically begins at the 6,000 to 7,000 mark. The redline is the maximum RPM rate the engine could turn at, and is the maximum safe operating zone.

Q: For many years I've been wondering why so many vehicles have an RPM dial when no one uses it. What purpose does it have, and who benefits from using it? It takes up a lot of space on the ...

For years I have thought how wasteful the car vehicle makers are when they include a rev counter in every vehicle. I have asked several friends including lots of women and they do not have a clue why ...

The Irish Medical Organisation has called for tachometers to be fitted in all State cars in an effort to stop ministers and other officials from flouting the speeding laws.