[Johnno]

Here for sale are two MrTrax controller panels. 
$190 each panel

MT-4L-CP Controller Panel - Lanes 1 (Green) & 2 (Blue) and Lanes 3 (Orange) & 4 (Yellow)

Pickup Location: Taree, NSW, 2430 or can be shipped (6kg each). 

You will need 2 of these for a 4 Lane track. The controller panels have coloured rings around each socket, and matches the lane colours for easy lane identification (Green/Orange and Blue/Yellow).  

The sockets are wired the same as the commercial slot car raceways in South Australia, Victoria, NSW and Queensland. Now you can use your controllers at home as well as at these commercial raceways.