What company owns the rights to both the Radiator Springs Racers and Test Track attractions?
Test Track Test Track is a high speed giant slot car attraction at Epcot at the Walt Disney World Resort in Bay Lake, Florida. The ride is a simulated excursion through the rigorous testing procedures that General Motors uses to evaluate its concept cars, culminating in a high-speed drive around the exterior of the attraction. It closed for refurbishment on April 15, 2012 and re-opened on December 6, 2012. It is now sponsored by the Chevrolet brand rather than General Motors as a whole, who sponsored the attraction from 1999 until the refurbishment.
Homestead-Miami Speedway Homestead-Miami Speedway is a motor racing track located in Homestead, Florida. The track, which has several configurations, has promoted several series of racing, including NASCAR, the Verizon IndyCar Series, The  WeatherTech SportsCar Championship series, and the Championship Cup Series.