Welcome to the Greenbriar Run! It is approximately 150 feet of track laid out on 4, 4x8 foot table tops, slightly extended. Right-of-way privileges will allow another 50 feet. The elevations are constructed plywood, metal screen and about 10 gallons of drywall mud ? cheap, no mixing and very little mess. The best single lap time is 16.92 seconds set by a Fly Tomb Raider. This road course is definitely an even test of SKILL and SPEED!!!