I drove my housemate's car the other day. I've been the passenger in keyless ignition cars many times, but this was the first time that I was behind the wheel. The handbrake was a fucking button. If I went too slow, I got beeped at. If I went too fast, I got beeped at. Periodically, I'd feel the computer fucking with the steering wheel. I tried to turn off cruise control, the display said that it was off but I could still feel it in the accelerator pedal when the computer decided that I was going too fast. The only way to interact with anything on the dash was through a touch screen.
The car was lovely and comfortable inside, perfect climate control and visibility, the engine was barely audible, turned on a twenty cent piece, the brakes were smooth as silk.
The entire vehicle is one bad software update away from being a huge, expensive, absolutely useless brick.