Turbocharged engines are popular among manufacturers as of 2015, with most major car companies offering at least one turbocharged model. These manufacturers include Ford, Nissan, Porsche, Hyundai and Toyota.
Turbocharged engines have gained popularity among car manufacturers in recent years due to the need for higher fuel efficiency in vehicles. This is due to the increasing consumer interest in vehicles with high gas mileage as well as federal fuel efficiency standards that mandate a steady increase in efficiency over time. Turbocharging provides a way to increase fuel efficiency by increasing the amount of oxygen that mixes with fuel during combustion, leading to a more complete combustion of the fuel in each engine cycle. Another reason for the rising popularity of turbocharged engines is that modern turbochargers are more robust and responsive than the turbocharger designs of the late 20th century, which were prone to malfunction and a delayed acceleration response known as "turbo lag."
Supercharged engines are also popular with many manufacturers, since they gain much of the same benefits as turbocharged engines. The primary difference between a supercharger and a turbocharger is that the air compressor of a supercharger is run by a mechanical linkage to the engine, while a turbocharger powers the compressor via exhaust gases from the engine. Turbochargers are usually more efficient than superchargers, while superchargers are more responsive to throttle input. Some engines, such as the Volvo T6 engine, use both a turbocharger and supercharger in parallel.