SUPER-Ultra-low emmission vehicle. WOW, that sounds impressive, doesn't it?
It actually should be related to the actual emmission standards that it meets. For example 2006 US-EPA tier-2 bin-5 or whatever set of rules it really satisfies. Look for the fine print on the emmissions-compliance sticker under the hood.
In practical physical terms, there's probably little or no physical differences, some (maybe a lot) programming differences (fuel & spark maps in the ECU), and maybe small HP & MPG differences. Probably Honda is required to sell at least xx% of total sales in California must be SULEV or some such requirement.
Last edited by JimBlake; 10-23-2009 at 10:07 AM.