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Heifer fuel

Unlike most people, when Michael Doyle drives past a herd of cattle grazing in a field, he doesn't see future tenderloins or T-bones. He sees fuel. The company Doyle co-owns, North Star Biofuels, is about to start production of biodiesel at a new $15 million, 20,000-square-foot plant in Watsonville, Calif., about 60 miles south of San Francisco.

BMW displays Calder art car, racers and classics at Amelia Island

The first BMW art car -- a 1975 3.0 CSL wearing a paint job designed by Alexander Calder -- headlined a class of significant cars from the German automaker at the 2014 Amelia Island Concours d'Elegance. It was joined by a BMW M-powered McLaren F1 GTR, a first-generation 320i, winners of the 1975 12 Hours of Sebring, a BMW 320 Turbo race car, and the first BMW convertible. The Calder art car is the first in a series that has spanned more than 40 years of Roundel history.

Moss's mangled Mille Miglia Maserati to move Monaco money

Stirling Moss drove the 1956 Mille Miglia in a heavy rain that came down in sheets; no visibility, no brakes. Spectators lined the streets regardless. Piero Taruffi took the lead in a Maserati 300S, but he had to stop at Savignano when his brakes gave out.