Not related to self driving, but other shitty car design.
I had a Nissan with a CVT before it was widely known they were garbage. I hit the brakes to avoid someone that ran a red, and the CVT went in to some protection mode and left me and my family stuck in the middle of the intersection for 2 entire light cycles before it'd move again.
Dealership just kept saying it's fine and it was protecting the CVT from damage after going from throttle to brake quickly. I don't give a fuck about the CVT, I care about the squishy bits inside the cabin.
After it did that again and the power windows stopped working the same day, I traded it in for a Mazda with a proper transmission. 248k miles later it's still great.