A naturally aspirated engine is an internal combustion engine in which oxygen intake depends solely on atmospheric pressure and does not rely on forced induction through a turbocharger or a supercharger. Many sports cars specifically use naturally aspirated engines to avoid turbo lag.
Proton Persona 1.6i (2008)
Model: Proton Persona 1.6i Engine: 1.6 Litre Naturally Aspirated Power: [...]