Old U.S. tax law encourages buying of luxury SUVs: In all, more than 30 luxury SUVs qualify for the tax break. Business owners who use their car for work can deduct up to 100 per cent of the cost of any vehicle that weighs at least 6,000 pounds. In this weight class are the Hummer, Cadillac Escalade, Mercedes-Benz M-Class, Lincoln Navigator, Porsche Cayenne and Volkswagen Touareg. Anything lighter and more fuel efficient doesn't qualify.


Elsewhere, Not all hydrogen is created equal. This is important, and should receive more attention.