[MontyCarloHall]

No, they are not. Cars must alert the driver if they are exceeding the speed limit, but there is no forced limiting.

https://jalopnik.com/no-europe-didnt-just-force-automakers-t...

[Drunk_Engineer]

Many expect the EU to eventually remove override capabilities as the systems become more widespread.

[Akronymus]

Basically impossible to get through. As there are often cases where it picks up a speed limit from something like the off ramp on the equivalent of a highway. Which would be dangerous if it suddenly decelerated from 130 to 80.

[mr_toad]

Speed limiters aren’t connected to the brakes, just the throttle.

[Akronymus]

Well, at least mine is actually connected to the brakes.

[Drunk_Engineer]

"ISA [Intelligent Speed Assist] systems do not automatically apply the brakes, but simply limit engine power preventing the vehicle from accelerating past the current speed limit unless overridden."

See https://etsc.eu/intelligent-speed-assistance-isa/ for list of vehicles.

[Akronymus]

https://www.youtube.com/watch?v=YM3oUGbvZbI

No, it actually applies the brakes automatically. The ACC as toyota calls it.