OK, the bottom image, 1917 Golden Submarine, Miller, Barny Oldfield, Engine Specification:
4 Cylinder aluminum alloy, 289 cid, 3-5/8 bore x 7" stroke, 136 H.P. @ 2950 R.P.M., Single overhead cam, desmodromic valves, dual intake ports for each cylinder, dual sparkplugs and magnetos.
Body and Chassis:
Wind tunnel tested aluminum body with rollover protection. 104" wheelbase. 1600 lbs.
Race Record:
Competed in 54 races; 20 wins, 2 seconds 2 thirds. Competed in the 1919 Indy race but did not finish.
First enclosed cockpit (NASCAB)?