Yrs truly is guessing incorrect scrub radius.
The late Ed Rannberg of later Eyeball Engineering electric bikes and streamliner fame built a dragster with a Triumph M/C engine using German Lloyd FWD components about the time of the Polliwog and it went anything but straight under power, wrong wheel offset to "Kingpin" centerline was the suspect, though he gave up on the project quickly.
Incidentally, my former injector pump delivered fuel to the Polliwog -(very weak claim to fame).
You have to look at all the successful Indy cars with FWD in the day -and several currently running LSR cars to discredit the idea otherwise.