In a time of unstable gasoline prices, one might think a hybrid is the best way to go. But there's a proven alternative that offers the gas mileage you want without requiring a hybrid's premium price.
It's the diesel, an engine that has been around forever but which has also been dumped upon nearly forever for such things as emissions and noise. But today's diesel can be different from days gone by, if Volkswagen's "clean diesel" technology is any indication.
