Despite being mocked by Henry Ford decades ago, we'll finally get our 'better horse'!

Build it in the shape of a domesticated Bactrian camel, put the seat in between the humps, use the humps for extra battery (or cargo compartments)

I think you've just nearly described the 'Chevaline' mechanical horses in The Diamond Age, but without the nanotech

just in time when yc is starting a primer call

Seems like that would significantly raise the center-of-gravity making it less stable?