The feasability of a motor on the rear axle?

Our cars have a reputation on the roads....
The computer systems within them seem to be difficult to re-program (engine switching on after a few seconds in the driveway, inability to knock 2-3% off the MPG readout etc). So, a Prius GTe with upgraded hardware/firmware is no easy task.
Many would argue it doesn't need anything else for power and, i'm in that crowd. A good reliable comfortable economical A to B, with some EV characteristics.

-But-
It occurred to me, that fitting a forklift motor on the rear axle of a Prius could be whole lot of fun.

1/4 mile drag racing surprise, if done correctly.

As far as I can see under my own and from viewing pics, the rear axle is a bar type. Fairly simple and unencumbered by anything else of the drivetrain.
Fitting a motor in the middle, with dual output splines to a replacement tube type is one idea.
Having it connected via a gear to the axle which also has a gear, is another. We wouldn't want the rear to be sliding around.
Power could be from the main battery, though the computer would have a hissy fit. Preference would be from a dedicated set of li-ions in the trunk. Nothing huge, just for short period assistance and to supply minimum power for magnet drag purposes. A switch in the cabin could use that drag on steep hills and/or as it's own regen for the pack.
A basic control circuit would monitor RPM's, delivering power smoothly...unless burnouts were desired. A Prius burnout would see a million views in a week on Youtube!
And, the new 2019 has AWD-e , this would be a cost efficient performance upgrade to somewhat emulate. Useful in snow, as another trick.
A bonus would be the possibility of a towing rating increase, or in fact an ability to tow.
Extra bonus would be removal of the lead/acid battery, using a 12V step down off the new pack.

As these cars get older, the idea may gain more, erm, traction.
I've seen a thread on here recently (can't find it) with a guy wishing to extend the EV range with more batts, a Plug-In type scenario for regular Hybrids. Perhaps research could be incorporated, such that 2 separate independent packs aren't needed.
Is it a misguided naive idea, or could such a thing be a practical conversion with potential?

 

We have an old washing machine and I have a screwdriver.
It's New Year's Eve and I have beer.

What could go wrong?

 

a Hemi would be the ticket. Police ticket as well, which am guessing is also a rarity.

"you will go 1/4 mile somewhere before it times out"
No kidding Jimbo haha, into a hedge probably.

Well, thinking about those hub motors. Do we just wait for a few AWD-e cars to crash and then fit those?
I'd bet the bits themselves won't be cheap from Toyota, best to go to the scrapyard and tell them you need a wheel for a newer Prius and they can leave the wires and stuff on the back of it, not to inconvenience them. $40 later, full hub motor with a decent wheel on it.
Hook it up to a 'Turbo' switch and small battery pack to complete.

 

Small as in li-ion pack small, compared to Ni-MH large.
I mean, there's going to have to be room left in the trunk for the celebration beers

Do we know the horsepower of either type, a common forklift or hub motor?
I've seen some conversions but never know if the hp is correct. Am running into lots of forum posts, but they're on other forums.
130hp seems about right at approx 40V. 1000A is scary current

This is the sort of slim line forklift motor that may fit under the car......am thinking the cheap and cheerful lunatic idea for this one:
USED RAYMOND PRESTOLITE YALE ELECTRIC DRIVE FORKLIFT MOTOR 106744 (19G) | eBay
But then again, coils, shocks etc may need to lift the whole suspension.

No I haven't thought this through