On the 1940Coney promo that Charles linked to they show a quick glimpse of a ride I remember and loved, the Hey Dey. It's like a combo Whip and Tilt-a-Whirl. They show it around the 3:30 mark, right after the "Human Roulette Wheel." (Love how the girls rode that wearing skirts.)
The automobile "coasters" were called Whoopie Tracks, and although i'm not sure exactly where or how many, they are known to have dotted the country as roadside attractions. As automobile travel became prolific, these tracks were placed along the highways to provide a fun diversion, or a rest along a long and boring route. The tracks were oblong in layout like a racetrack with undulating hills on the out and return trip. The drivers would leave the highway, pull up to the Whoopie Track, pay their money and drive the series of dips to the other end.
The Whoopie Track's downfall and what led to it's demise was the automobile and drivers themselves. Cars back then weren't built to handle "extreme" terrain and would frequently stall out over one of the hills, causing it to roll back. Crashes were frequent. Then as auto technology improved, cars became faster, roads became better, amusements changed and the Whoopie Track went by the wayside.