In this episode, witness the journey of restoring a custom-built rotary valve engine after an unexpected fire and excessive ...

Rotary engines (also known as Wankel engines and Wankel rotary engines) are quite different from piston or "reciprocating" engines. One of the distinguishing features is that they don't need valves to ...

Rotary engines are compact, smooth, and powerful, so why don't more automakers use them? Well, it's complicated.

It is quite ironic that internal combustion engines (ICEs) have remained basically the same for more than one hundred years. It is only now – when they are allegedly on the verge of disappearing – ...

The FD RX-7's 13B-REW was Mazda's rotary masterpiece—but owning one in 2026 comes with a serious financial commitment.

The piston engine may be the most common type of internal combustion engine found in consumer automotive vehicles. That doesn't mean it's the only option drivers have ever had access to. In the 1960s, ...