Carrera Evolution Series Racing Legends Slot Car Set. The Evolution Series is the epitome of slot racing! Worldwide unique race track system combining tracks to race 1:24 and 1:36 scale cars. Wider track lanes allow realistic drifting and sliding. Tracks have stainless U-profiles using Nirosta high-grade steel. Flexible track connections prevent interruptions in track content. Cars can have realistic acceleration and braking action. Track can be expanded up to 8 lanes with track sold separately. 9 Volt Battery included. Asembly Required. Dimensions: 13.12"L x 6"W x 2.62"H Weight: 6 lbs