Here are the M5s undergoing field testing in 1942 and 1943.

Looks like the one throwing up the mud has achieved a nice turn of speed.

For the one going over the "cliff" I hope the driver has his crash hat on to take the jolt.

They certainly look like highly nimble little beasts and I bet they would turn on a silver Massey-Harris coin! Now there's a thought - where wereand who made them for the company??  Answers by return please.