Renewable Energy [Accessory] H2GP SPRINT Practice TrackRenewable Energy [Accessory] H2GP SPRINT Practice Track Bring hydrogen racing to any location you can imagine. Our lightweight, on demand 10m practice track allows you to race Sprint cars literally anywhere a school gym, a classroom tabletop, or even down the hallway. The track is made from durable and flexible materials, meaning its built to withstand anything kids put it through. To bring hydrogen racing to any location imaginable, simply roll up