When I think mass transit, I think of something with a 20+ capacity minimum. Self driving or no, privately owned or publicly owned, I don't think having a bunch of smaller vehicles flittering about is a good use of resources. Multiple bus stops or trolley stops for every neighborhood or subways make much more sense to me. As for the whole argument that car enthusiast culture is a small sample size compared to the whole population that uses cars? Yeah, you have a point. To counter though, for people that enjoy that subculture, it matters and a lot of people are gonna be sad to lose that. I'd also argue that it's not a good idea to be dismissive of sub cultures just based on population size, as their influences tend to have ripple effects into society as a whole. But you already know that so theres no point in analyzing that aspect of the argument.