This is along the lines of the Scalextric 6 Advanced Powerbase. Giving options for the automatic ("pace") cars of not switching lanes, always switch lanes, or randomly switch lanes.
Also, in an earlier Inquire - Vote, I asked if you would like to tell when the automatic ("pace") car what part of the track the car could change lanes. (i.e. PrPit and PoPit for the C7042).
This post really goes hand and hand with the earlier post. I think both would be great.