Ford has clearly put money into making the engine and transmission smooth and quiet.

And you can feel this on the road, enjoying a smooth and refined engine.

The straight-8 is a smooth running engine.

Katherine walked in and as she did so heard the smooth engine of the Rolls pulling away.

The quality feel continues once you're riding thanks to the smooth and strong engine, which is good for about 90mph, with decent acceleration up to 75mph.

This provides a smooth running engine for a luxury car.

The smooth, 15bhp engine is one of the best performers in the class, giving a top speed of 65mph.

I like the Foundation to run smooth as an engine, smooth and predictable.

Road tests by Consumer Reports described the new powerplant as "a very smooth and quiet engine, which should give good performance."

A smooth engine cowling with a "chin" radiator was tried out in various configurations.