Clean Diesel 101

The Volkswagen Polo BlueMotion is a clean diesel small car that offers 
combined city/highway fuel economy in the 65-mile-per-gallon range. 
Its patented BlueMotion technology is very similar to Mercedes Benz’s 
urea-based Bluetec system. Due to renewed interest in diesel in the 
U.S., the automaker hinted at bringing the diesel Polo stateside in 
late 2010 or early 2011—but that’s far from certain. It is powered by 
a compact three-cylinder 1.4-liter direct injection turbo-diesel 
engine, which delivers far more performance than any small car 
currently in the U.S., including the Mini Cooper.