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There Are 100 Computers Hiding in Your Car Right Now (You’re Riding a Data Center on Wheels)
(www.carsandhorsepower.com)
This is a most excellent place for technology news and articles.
All I need is a baseline open hardware EV. Fat chance, of course. So I guess I have to buy something used, today older than 8 years and counting.
this civic ev swap kit looks promising: https://www.youtube.com/watch?v=0VFNb139Nlc
aftermarket ecu should give pretty good control of all the data.
Not quite open hardware, but it's minimal compute - https://www.slate.auto/
SUV and US only, hard pass.