The Sadler’s Indoor Racing Family would like to thank the Kansas City area for 14 years of loyal customers. We have decided to move on to new adventures. We encourage our loyal customers to visit Extreme Grand Prix Family Fun Center in Raytown, MO to satisfy your need for speed. Extreme Grand Prix can accommodate any of your party and event needs. They are located at 6731 Blue Ridge Blvd Raytown, MO 64133. Their phone number is 816-286-4156.