My current (2023 model) has such sensors and cameras to detect speed limits and switches cruise control based on it. It gets it wrong way too often to actually enforce it. E.g. 50kmh roads turning into highways and the car not recognising the highway sign due to a bush, the fact that Dutch highways have different speed limits at different times often without clear signing, or even the opposite problem where it’ll see a 120kmh sign from another lane and active cruise will suddenly speed me up to that on a 50kmh bend.