An interesting read..[kinda]

[McGherkin]

As does the Ford Focus.

(2012-07-11 21:56)NVRMR Wrote:  I can imagine something like this + a traffic jam mode where you can sit the car behind a car and it speed matches at a crawl, then if the car in front slows down it also detects that and acts appropriately.

Merc S-classes can pretty much do that, but it won't drive off again unless you tell it to, because for all it knows you could be sat at a roundabout and the car in front has just gone for a tiny gap.