Marty and his wife Nancy both died on Monday, according to their close friend Lee Ramage, in a dune buggy accident during a day out at the Imperial Sand Dunes in Southern California.

SAN DIEGO (CNN) — Marty Smith, a prolific motocross rider known for winning 18 career national motocross titles, has died. He was 63. Smith and his wife Nancy were both killed in a dune buggy ...

Motocross legend Marty Smith and wife Nancy have been killed in a dune buggy accident in the California desert. The 63-year-old Marty Smith won 18 national motocross championships across an ...

Marty Smith won three American Motorcyclist Association national championships in the 1970s. He and his wife Nancy died in a dune buggy accident.

Legendary pro racer Marty Smith and his wife, Nancy, were both killed in a freak dune buggy accident on Monday, according to reports.

Pioneer American motocross champion Marty Smith and his wife Nancy were killed Monday evening in a single-vehicle, roll-over dune buggy accident in the Imperial sand dunes near Gordon’s Well in ...

Marty Smith, a popular motocross rider who won three national titles in the 1970s, died on Monday along with his wife Nancy in a dune buggy crash, according to Smith’s close friend Lee Ramage.