The Grand Am Circuit has been specifically designed for small spaces, and fits perfectly on a 4x8 board. This set includes two "55 Plus" controllers, 110-120V AC power supply, elevated track section supports, and guardrails. The Grand Am set also offers two other alternative track configurations, and if 32.4 feet isn't enough, NINCO track is easily expandable and upgradeable. This is an analog-digital compatible system that is easily upgradable to the Ninco digital system with the #40202 N-Digital conversion kit. The Grand Am Set is a great track to get started in 1/32 scale slot car racing or use to expand an existing Ninco circuit! Ninco Slot Car Tracks offer 10 distinct advantages over other track types. Insulated Rail & 6.5mm Slot Depth: Rules out short circuits, prevents wear to the slot and facilitates enhanced vehicle movement and performance.