Common rail direct fuel injection is a direct fuel injection system for petrol and diesel engines.

Indirect injection in an internal combustion engine is fuel injection where fuel is not directly injected into the combustion chamber.

A free-piston engine is a linear, 'crankless' internal combustion engine

Diesel engines began to be used in automobiles in the 1930s.

The diesel engine (correctly known as a compression-ignition or CI engine) is an internal combustion engine in which ignition of the fuel that has been injected into the combustion chamber

A V10 engine is a V engine with 10 cylinders in two banks of five. It is longer than a V8 engine but shorter than a straight-6 engine or V12 engine.

A V12 engine is a V engine with 12 cylinders mounted on the crankcase in two banks of six cylinders each, usually but not always at a 60° angle to each other, with all 12 pistons driving a common crankshaft. 

A flat engine is an internal combustion engine with horizontally-opposed pistons.

The Volkswagen Group W8 engine was installed longitudinally in the Volkswagen Passat (B5.5) from September 2001 to September 2004, but sales were minimal at only 10,000 units worldwide per year.

A V8 engine is an eight-cylinder V configuration engine with the cylinders mounted on the crankcase in two sets (or banks) of four, with all eight pistons driving a common crankshaft.