Project started life like many others inspired my Damien's 999euro challenge, and proceeded in similar design with a dc motor, home built controller and 13 lead acid batteries, this worked well enough to me to be hooked on the idea of electric power so i promptly bought a couple of BMW 330e hybrid packs, great i thought.... no thanks said the home built controller after 1 hot lap round the block after which it let out the magic smoke with a shotgun type sound! Next up bring in a cheap Prius gen2 inverter and a home brew teensy based control board parrellel up all inverter phase outputs to drive the dc motor and deliver north of 700amps to the motor, this was LOTS of fun... then i melted my motor! well at least the leads to the brush holders evaporated, the brushes burned and scorched the commutator bars, This was nearly the end of my electric car experiment until.... I figured why not make this even more challenging and ignore all the other well established conversions like the leaf, lets take a motor i can get very cheap (lexus rx400h) that is totally inappropriate for a rwd layout, throw away the reduction gears and diff, remove and weld up that part of the case, couple the 2 motors internally, make an adapter plate and coupling and drive the rx8 gearbox via what was the engine input shaft to the hybrid gearbox,... simple right.... please no one else do this, yes it works but there are better ways to spend your time..this coupled with another Prius gen2 inverter and a couple of Johannes control boards is the base of the car I'm driving today, yes I've added a few more battery modules, I have chademo dc charging and outlander obc, but its happily running along on a daily basis, I'd like to upgrade the inverter as this is limiting power output currently, so that is probably the next project for the car...