https://www.vehicle-certification-agency.gov.uk/fuel-consumption-co2/fuel-consumption-guide/cars-and-noise/#topic-title https://www.vehicle-certification-agency

https://www.vehicle-certification-agency.gov.uk/fuel-consumption-co2/fuel-consumption-guide/cars-and-noise/#topic-title https://www.vehicle-certification-agency.gov.uk/fuel-consump... >The external noise emitted by passenger cars has been controlled since 1929 when the Motor Cars (Excessive Noise) regulations were introduced. New cars are now required to meet Europe-wide noise limits. These have been progressively reduced from 82 decibels (dB (A)) in 1978 to the current limit of 72 dB (A) established in 2016.