Re: Perhaps the answer...
Some of us drive old cars or basic cars, and so do not have adaptive cruise control (personally do not like idea of cruise control as I'm likely to lose attentiveness if part of the driving done for me - I personally want either a 100% fully AI car (that is at least as safe as a human), or 100% human controlled car - do not fancy the in-between scenarios where reacting to emergency will be slower if focus has been lost due to partial automation