It’s very common to find vehicles using engines with four and six cylinders, with some able to use as few as three or as many as twelve cylinders in certain configurations. But in the majority of ...

Having lived with a four-cylinder Mercedes 240D and a five-cylinder 300D, I can tell you that the extra cylinder makes a huge difference getting up to highway speed at the end of an on-ramp.

The Audi five-cylinder isn’t long for this world, but it’s still around to celebrate its 50th birthday. Inline-five engines have been around since the ’30s, but it was only in the ’70s that they ...