We're testing out the new Bentley Continental GT Speed Convertible near Lake Tahoe, and โ€” well look at that โ€” it's snowing like mad. So far the 5500-pound, 616-horsepower AWD bruiser is holding its own against the SUVs. We've got Dunlop winter shoes on and chains in the trunk if we need them. We'll call if we need air support. Or a St. Bernard.