Every Saturday night from 4pm-8pm. McDonalds Rock 'n' Roll Classic Car Show - Celebrating over 20 years! The longest consistently run car show! This "Rock 'n' Roll McDonald's" in Scottsdale is the perfect destination to see classic cars and motorcycles in a free open air event complete with 50's era music provided by "Party Time DJ's. An average night showcases anywhere from 250 to 500 cars and up to 150 motorcycles. Admission: FREE