Regulatory Differences
Historically, one of the most conspicuous differences between UN and US regulations was the design and performance of headlamps. The Citroën DS shown here illustrates the large differences in headlamps during the 1940-1983 era when US regulations required sealed beam headlamps.
It is not currently possible to produce a single car design that fully meets both UN and US requirements simultaneously, but it is growing easier as both sets of regulations evolve. Given the size of the US vehicle market, and differing marketing strategies in North America vs. the rest of the world, many manufacturers produce vehicles in three versions: North American, rest-of-world right-hand drive (RHD) and rest-of-world left-hand-drive (LHD).
Read more about this topic: World Forum For Harmonization Of Vehicle Regulations
Famous quotes containing the word differences:
“The country is fed up with children and their problems. For the first time in history, the differences in outlook between people raising children and those who are not are beginning to assume some political significance. This difference is already a part of the conflicts in local school politics. It may spread to other levels of government. Society has less time for the concerns of those who raise the young or try to teach them.”
—Joseph Featherstone (20th century)