There are places for safe experimentation like tracks, so I don’t see why this fear isn’t irrational or a ploy for control.
People won't intentionally make their vehicles dangerous, but it's easier to make bad software than to completely bodge a physical repair using manufactured parts.
I don't know how vehicle software works, but hopefully they don't crash like consumer software. Someone here knows the answer -- is there like a supervisory manager/kernel that keeps all the subsystems running? And modular separation so that bad changes to the fuel injection system won't take out the fly-by-wire brakes?
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> There are places for safe experimentation like tracks, so I don’t see why this fear isn’t irrational or a ploy for control.
I don't think many people track modded minivans. "No the Subaru WRX is my DD, my main track car is a Honda Odyssey"
As much as it would be nice for hobbyists, this is one can 2.0A of worms that needs to be kept as shut as possible by lawmakers.
Imagine people had the option when buying a car, truck or minivan of having it be open and tinkerable?
Most people won't care, but some hobbyists will. Some companies will love it, some startups might be founded for it. But eventually there will be a killer app, or huge benefit, and it will become more common until it is standard.
I'd imagine certain groups like farmers would jump on buying open source trucks, hoping they can get them to last longer, or repair them cheaper.