The new Carrera GO!!! "Build 'n Race Racing" set 4.9 is all about building towards victory. Winners of these thrilling battles need more than just horsepower supremacy.These cars can be built and rebuilt at will. All racing drivers aged 6 and upwards can also use the kit pieces of other manufacturers to create the racing world they have always dreamed of.Out on the starting line the blue speed machine and the gigantic truck can't wait for the signal to roar off in a cloud of smoke and rubber. Hobby builders know plenty of skill tests are provided by the narrow section, bends and high-speed straights on the 4.9-metre circuit.