I've never been a fan of adaptive cruise.
A good friend of mine is the shop foreman at the local Mercedes dealer.
He had an s class Amg out for a drive.
Using the adaptive cruise, he set the cruise to 110kph.
He got behind a dump truck that was doing 70, no problem... The car slowed down... He changed lanes, and when the car saw a clear path, it resumed its speed.
Now the resume was quite fast. The twin turbo, V12 has some ponies.
The roads were slick, and he went fishtailing down the highway.
Scared the pants off him.
I do find, most cars " resume" speed, could be a lot slower.
2015 RAM 3500 CCSB CUMMINS
2016 Sabre 36QBOK