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Today's diesels, like the BMW 335d, are powerful, clean and fuel efficient, and have overcome previous drawbacks. Dr. Ronald Golden, my periodontist, had one question beyond the usual inquiry into how I am going so very wrong with his brushing technique. "Where do you get the diesel fuel?" Told that BMW's new 335d is my current test car, Dr. Golden, a long-time BMW driver and auto enthusiast, is curious and wide open to the concept of a high-torque engine powering the superb 3-Series chassis. Chasing all over the city for diesel fuel, though, he doesn't fancy. My usual Petro-Canada self-serve station doesn't offer diesel, it's true, but the Loblaw's just a few blocks further does. The former is 1.7 km from home, the latter 2.8 km, so for me it's no big deal. But how far Dr. Golden's nearest diesel outlet is out of his way requires some research. And on the topic of FAQs, another is how long your hands stink after filling up. Before the sulphur ...

Working on the theory that saving fuel is most important in the vehicles that consume the most, General Motors has introduced the GMC Sierra and Chevrolet Silverado hybrid pickup trucks. Already out in Yukon and Tahoe SUVs, the two-mode hybrid was developed in a joint venture with Chrysler and BMW. The idea came about as a scaled-down version of GM’s hybrid bus drive train and is especially well-suited to vehicles that need some towing and hauling capability. The system is distinct from most other hybrid systems because it can automatically run on straight mechanical power as well as pure electric or a combination of the two. Based on the reengineered Sierra and Silverado pickups that debuted in 2007, the hybrids look the same as the crew cab versions of the base trucks with the exception of some hybrid badges, optional hybrid graphics and a standard tonneau cover that helps out aerodynamics. The battery pack is underneath the rear seat, and the hybrid drive unit is about the same size...