Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. 1986 was the first season of title sponsorship by Escort, replacing title sponsor Playboy from the previous season. The class structure was also modified, adding the Super Sports (SS) class and combining the C class of the previous year into the B class. The per race purse was set to US$28,000 and the year-end points fund grew to US$80,000 - to be split among the four classes.1 6 Hours of Sears Point 6 Hours Sears Point International Raceway Sonoma, California April 26 2 Toyo Tire Shrine Cup Twin 4 Hours of Portland Twin 4 Hours Portland International Raceway Portland, Oregon May 11 3 24 Hour Longest Day of Nelson 24 Hours Nelson Ledges Road Course Warren, Ohio June 28-29 4 Albany Classic Cars/Mobil Oil 6 Hours of Road Atlanta 6 Hours Road Atlanta Braselton, Georgia July 20 5 Budweiser 24 Hours of Mosport 24 Hours Mosport Park Downsview, Ontario August 8-10 6 24 hours of Mid Ohio 24 Hours Mid-Ohio Sports Car Course Lexington, Ohio September 28-29