Sonny O'Sullivan has died.

[John Berti]

Heard from Dan O'Sullivan that his brother, Sonny O'Sullivan, passed away last night peacefully.

Sonny was a prominant figure and fan favorite in modified racing at the legendary Riverside Park Speedway in Agawam, Massachusetts back in the 60's and 70's.

R.I.P. Sonny O'.

[Boneman]

It seems like he drove everything at some point. I know I raced sprints with him, but I also saw him go in LM and Dwarf cars. RIP racer.