You know what’s really surreal? Someone attacking my argument based on where I live, without apparently checking the facts.
The U.S. standard for light duty vehicles in 2004 was broken into three categories: TLEV, LEV, and ULEV.
Allowable NOx emissions for TLEV is .4 g/mi. For LEV and ULEV, it’s .2g/mi
In comparison, Europe’s Euro 3 standard for passenger vehicles allows .15 g/km, which would only qualify a European vehicle for TLEV status.
The really high mileage cars in Europe are diesel, and they didn’t come close - the Euro 3 standard allowed for .5 g/km.
Now, the standards have grown closer, and low-sulfer diesel fuel allows Diesel cars to pass emissions standards. But unfortunately, the relative lack of diesel cars on the road has caused the diesel infrastructure to dwindle in the U.S., so diesel fuel is expensive and it’s hard to find places to fill up.
As for other regulations - one example is headlights. A lot of European cars couldn’t pass the U.S. headlight restriction because the U.S. requires sealed beam headlamps. Another is the U.S. 5 mph bumper requirement.
In addition, crash testing is different in Europe than it is in the U.S., and some cars that have done well in European crash tests have fared miserably in U.S. tests.
There are lots of other reasons why it’s not a trivial matter to just import European cars. Exchange rates are a big one. Some of it was short-sightedness on the parts of Euro auto manufacturers, who assumed that Americans weren’t interested in tiny cars. And there’s some truth to that. Fiat went broke in the U.S. trying to sell little cars, and Alfa Romeo didn’t have luck either.
Today, more and more standards are being unified, and companies are building more ‘world cars’ designed to meet as broad a range of regulations and emissions standards as possible. That, plus the low sulfer diesel fuel now available, is causing a lot of Euro cars to be looked at in the United States. Ford is finally bringing its sweet Euro Focus to the U.S. market for example.