Oldsmobile was reinventing itself for 1939, and the Series 70 bowed that year as the mid-price entry. It shared the 120 inch wheelbase B-body platform with the Series 80, but was powered by a 230 CID six cylinder making 95hp. Bodies offered were club coupe, business coupe, touring coupe, convertible, touring sedan, and strip-chassis.
The wheelbase of the Series 70 remained the same for 1940, even though the Series 60 gained an inch this year. Engine and body choices were carbon copy also.
‘Series 70′ as a model name was done after 1940, with subsequent years using ’76’ or ’78’ with ‘Dynamic’ thrown around as well.