Bohren was a long time racer in the International Motor Sports Association.
His racing career began with motorcycles and he moved into cars driving Formula Fords.
Bohren moved to IMSA racing and began a long association with Mazda.
[4] Bohren died in 2011 when he accidentally drowned near Tortola in the British Virgin Islands.
[5] This biographical article related to United States auto racing is a stub.