Sgt. Bill Chaffin recently retired from the L.A. County Sherriff’s Department, though he continues to serve as a Level I Reserve deputy. Before he was a cop, he was a street racer. Dealing with the fuzz as a racer got him interested in a law-enforcement career. Throughout his tenure with the department, he’s been a tireless advocate for the construction of a permanent dragstrip for street-racing events. A big part of that effort involves campaigning this ’87 Buick Grand National. He’s owned the car since 1993 and has driven it to 28 NHRA class championships. Instead of the stock turbo 3.8, this car has a 272ci V6 built by Kenny Duttweiler. With 15.5:1 compression, NASCAR heads, and a Protrans automatic, this car has run a best NA pass of 9.95 at 134 mph at Pomona.