Wouldn't they need to be re-tested for safety, given part of the crumple zone make-up would've been changed significantly. Besides, where would all the batteries go in a conventional car?
Normally, EVs have them stowed in the are under the floor - not possible in a conventional car. The only other location would be the boot, but wouldn't putting them there would severely compromise the weight distribution and boot capacity? It's bad enough for hybrids when the battery levels are very small in comparison.
Couldn't the batteries be put where the fuel tank would be? I believe the Mazda MX-5 which was converted to EV has a weight distribution virtually identical to the original ICE version.
But the MX-5 is hardly what you'd call a 'typical car', is it? Where exactly did all the batteries go? In the boot, which was hardly known for its size beforehand. I can't believe they could go in the chassis under the seats because the car wasn't designed to safely contain them in the event of a crash, as specially-designed EVs are.
How did the engineers get the drive fitted, given the car is RWD and they'd have to either fit motors to each wheel on the rear or have one fitted directly under the boot, reducing its capacity, or go back to using the centre shaft of original car - design-wise, which reduces efficiency.
It would be nice to see the details of this build to see exactly what they did and how it went afterwards (especially handling).
The key to retrofitting will be miniturising batteries (including reducing their weight overall significantly) to the extent that they can be sited in a very convenient spot and which is fully protected from crashes and that doesn't impinge on load/passenger space.
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