Carrera Digital 124/132 race track expansion set Make the race even more exciting by having the cars change lanes. Which car will be the first out of the bend and take the lead? An expansion set for a Carrera Digital 132 or 124 track. Specifications: Colour: black Length: 3.4 m Contents: 4 Standard straight track section 1 Double track switch section 1 Curved track switch 1 One-sided track switch.