Ubique
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- East Midlands
Other than pitting due to prevaling weather direction, I'd agree - they seem to be a higher carbon material, less friction than the 'pig Iron' heavy ones but they probably don't need it as there's a lot less energy to dissipate once the regen has had it's fill.Something I have noticed is brake discs don't corrode that much on the Renault EVs I've worked on.
We had a couple Kangoo's parked up for a good few months, and when they finally got moved, there was little corrosion on the discs.
Any other vehicle would likely struggle to move due to corrosion after sitting that long.
I'm guessing they're using a different spec of cast iron to minimise corrosion.