All you need are a couple pistons fitted into a block, so that you can run some fuel to the pistons, to turn a shaft, which spins your transmission, which then turns the wheels. I manage just fine with two wheels, and a set of handlebars, powered by an engine produce back in 1982. No automagic turn signal canceling, no power windows, no air conditioning, no heater - although I am somewhat of a sissy, in that I insist on a windshield.
Cars. I want very little more in a car than I have on my motorcycle. I don't WANT the damned car to do tricks. If I really want any tricks out of the car, I'll invest a few thousands under the hood, and in the transmission. Thank you very much - just a simple engine, tranny, and some wheels will be enough.