Volkswagen Golf

For the past few years I've enjoyed a simple automotive tradition: When planning a European vacation, I request a relatively attainable loaner car that's unavailable in the States. These slices of can't-get-it-at-home automotive exotica have tended to be clean diesels, and experiencing them in their native habitat ahead of their US debuts often gives some form of four-wheeled revelation. For instance, before the mainstream emergence of clean diesels stateside, I racked up 1,500 miles on a then-brand-new 2008 Mercedes-Benz C220 CDI. The otherwise unassuming sedan enabled me to cannonball from…