The global vehicle population hit 1 billion units, an impressive figure. Chevrolet is celebrating two important milestones this year: its 100th anniversary and the 100 millionth small-block V-8, which debuted in 1955. Saab is circling the drain. Unless it can pay suppliers some $620,000 TODAY, Sweden’s Debt Enforcement Agency will come banging on the door. All that and more, plus an interview with a man that’s made it his mission to drive a vintage car as his only transportation for an entire year.