My friend Tom built a 300 volt AC Dodge Neon.
He used a stock AC drive from some decommissioned factory.
The problem is that those drives are not designed with a car in mind. There are a lot of "little things" that had to be taken into account to make the drive really work for a car application.
He's an electrical engineer, and enjoyed the challenge. For the average guy, it would be a lot of work to make all the little tweaks for it to all work.
With an open source build, everything can be designed in right from the start.
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