
2 LIGHT AND HEAVY VEHICLE TECHNOLOGY
been the subject of increasingly stringent legislation in
most countries since the late 1960s, and in Britain is
included in the Provision of the Motor Vehicles (Con-
struction and Use) Regulations relating to noise. Since
the engine is an obvious source of noise an important
requirement is that its design and installation should
minimize noise emission, not only that directly radiated
from the engine itself to the exterior, but also that
arising from vibrations transmitted through its mounting
system to the car body interior.
Easy cold starting
An essential driver requirement of any engine, whether
it b