Looks like the driver is having fun.
” 1954 Ford Motor Company Tests New Jeep For Army Ordnance Corps Press Photo. You are bidding on an original press photo of Ford Motor Company Tests New Jeep For Army Ordnance Corps. It shows the jeep flying around the Ford Motor proving grounds track. Photo measures 8 x 10 inches and is dated 9/16/1954.”
Looks like a predesessor to the M-151