What type of engine is used in conventional vehicles?

Conventional vehicles primarily utilize an internal combustion engine, which operates by burning fuel—typically gasoline or diesel—to produce power. This type of engine works on the principle of converting the chemical energy stored in fuel into mechanical energy through a series of controlled explosions or combustions within the engine's cylinders.

Internal combustion engines are characterized by their well-established design and functioning, allowing for a high power-to-weight ratio and a relatively simple mechanical structure. They have been the dominant technology in the automotive industry for over a century, mainly due to their efficiency and performance in providing propulsion for vehicles.

In contrast, electric engines run on electricity stored in batteries, hybrid engines combine an internal combustion engine with electric power, and hydrogen engines rely on hydrogen fuel cells to generate electricity. These alternatives are not typically found in conventional vehicles, which is why the internal combustion engine remains the standard in this category.