The mind-bending world of birotary engines - a hybrid of piston and rotary technology that could revolutionize aviation. But ...

Meet the Birotary, a crazy new and complicated engine that has three cylinders arranged like a star, a rotating block, a ...

Engine 557 ran on coal when it first came to Alaska in 1944. Using oil, the 557 Restoration Company fired it up again in ...

While fresh oil is generally transparent and amber colored, black oil may mean it's time for a replacement and frothy oil can ...

Cross-plane cranks have their crank pins arranged in a plus shape. Flat-plane cranks have their crank pins arranged opposite ...

As the NBA season settles into its rhythm, the Cleveland Cavaliers find themselves at a pivotal moment. The Cavs, who have ...

What is it like to live with the battery-powered Stark Varg EX dual sport? We spent six months with one, riding it on various ...

The 2.2-litre, 4-cylinder mHawk diesel engine makes 183 BHP @ 3,500 rpm and 450 Nm @ 1,750 - 2,800 rpm: Powertrains were not ...

The go-to aircraft when it comes to ridiculing Second World War German aircraft design, the Bv 141 was an extremely efficient ...

This 1968 Plymouth Road Runner underwent plastic surgery and a heart transplant to look like it does today. It's for sale for ...

The 550-hp AWD muscle car is underpowered and overweight, and once the all-wheel traction advantage is cancelled, the big ...

Diesel engines do their hardest work in the toughest jobs, from highway semis to construction equipment, and the reason they ...