evolution- grand prix slot car set- 1:32 scale-19+ pcs This Grand Prix Set features a Ferrari F2005 "No. 1" and a McLaren Mercedes MP 4/20 "No. 9". The dimensions of the set when assembled are 6.56 x 2.62 ft. This set comes complete with everything you need to get started- track, cars, transformers, instructions and more! Includes wide track system for sensational drifts and power slide action. Cars have realistic acceleration and braking action, and come with polarity switch to change directions.