The Northeast Grand Prix (until 2006: New England Grand Prix) is a professional sports car race held at Lime Rock Park in Lakeville, Connecticut, United States as part of the IMSA WeatherTech SportsCar Championship.
 Previous editions of the Grand Prix belonged to the SCCA National Sports Car Championship, the IMSA GT Championship and the American Le Mans Series.
 The race currently has a duration of 2 hours and 40 minutes and takes place in July, previously having been held on Independence Day weekend compared to the Lime Rock Grand Prix that was held on Memorial Day weekend.
The Pirelli World Challenge is a North American auto racing series launched in 1990 by the Sports Car Club of America.
 It is managed by WC Vision since 2008, and is sanctioned by the United States Auto Club since 2017.
The Lime Rock Grand Prix (2010 name: Memorial Day Classic) is a sports car race held at Lime Rock Park in Lakeville, Connecticut, United States on the Memorial Day weekend.
 It had been a part of the Grand-Am Rolex Sports Car Series, SCCA National Sports Car Championship, USAC Road Racing Championship, IMSA GT Championship and United States Road Racing Championship.
 The revived version in 2017 is for the United States Auto Club Pirelli World Challenge.
Level 5 Motorsports was an American auto racing team founded by racing driver and technology entrepreneur Scott Tucker in 2006.
 Level 5 Motorsports currently competes in the United SportsCar Championship and Ferrari Challenge, having won multiple American Le Mans Series championships and endurance races including the 24 Hours of Daytona, 12 Hours of Sebring and Petit Le Mans.
 Level 5 Motorsports began with Tucker competing in the Sports Car Club of America and Ferrari Challenge Series.
 In 2007, while continuing with SCCA and Ferrari Challenge, Tucker entered several events in the Rolex Sports Car Series and Koni Challenge Series with co-driver Ed Zabinski.
 Tucker also competed in the IMSA GT3 Cup Challenge.
George J. Constantine (February 22, 1918 in Southbridge, Massachusetts – January 7, 1968 in New York City) was a racing driver from the United States.
 He competed nationally in 108 races between 1953 and 1962, winning 17 times.
 Mr. Constantine was the United States Sports Car Driver of the Year in 1960.
 He won the 1959 Nassau Trophy race and the 1956 grand prix at Watkins Glen, N.Y. (in a Jaguar D-type).
 He set course records at Lime Rock, Conn. (1:05.81), and Marlboro, Md., in 1958, and he was one of the top-rated competitors in the 1959 Daytona, Fla. international speedway race.
 Mr. Constantine was known as the "King of Lime Rock" and "The Flying Greek."
 His most famous car with the most victories was the rare and fabulous Aston Martin DBR2/1 (owned by Elisha Walker, Jr.), and his mechanic was Rex Woodgate.
The 1958 United States Grand Prix for Sports Cars was a sports car race held at Riverside International Raceway on October 12, 1958.
 It was the fourth and final round of the 1958 USAC Road Racing Championship season, the seventeenth round of the Sports Car Club of America's Pacific Coast Championship, the second running of the Riverside Grand Prix, and the first post-World War II running of the United States Grand Prix.
 The race was held over 62 laps of Riverside's 3.3 mi circuit, for a total of 203.1 mi .
 Chuck Daigh won the race overall, driving one of Lance Reventlow's Scarab-Chevrolets.
 The race is also noteworthy in the annals of international racing, as the strong second-place finish by a local driver named Dan Gurney earned him a test drive in a factory Ferrari Formula 1 car, effectively launching the Californian's legendary racing career.
The International Motor Sports Association (IMSA) is a North American auto racing sanctioning body based in Daytona Beach, Florida, United States of America.
 It was started by John Bishop, a former executive director of SCCA (Sports Car Club of America), and his wife Peggy in 1969 with help from Bill France, Sr. of NASCAR.
 Beginning in 2014, IMSA is the sanctioning body of the WeatherTech SportsCar Championship, the premier series resulting from the merger of Grand-Am Road Racing and the American Le Mans Series presented by Tequila Patrón.
The 1983 Can Am season was the sixteenth running of the Sports Car Club of America's prototype series and the seventh of the revived series.
 1983 marked the second year of Chevrolet having major competition, with Cosworth taking second at Mosport, first at Lime Rock, second at Trois-Rivieres, first at the second race at Mosport, and second at Sears Point.
 Hart would take third at Lime Rock and third at Trois-Riveires.
 Porsche would get its first podiums this season, with a win at Road America and third at the second race at Mosport.
 The dominant chassis were Frissbee, Ensign, Lola, VDS, Scandia, and Ralt.
 Jacques Villeneuve, Sr. was declared champion, with podiums in almost every race.
 He would, however, become the final major racecar driver to win a Can Am championship.
The June 14-15, 1963 race at Lime Rock Park was the fifth racing event of the thirteenth season of the Sports Car Club of America's National Sports Car Championship.
 Held under the auspices of the SCCA's New England Region, the event started on Friday with two races, and after an overnight rain which left the unpaved paddock looking like a lake, the racing concluded on Saturday, as there was an injunction forbidding Sunday racing at the venue which continues to the present day.
 In addition to the classes listed below, individual races were also held for a Formula cars, won by Arch McNeill in his Lotus 18 Formula Jr #18 (on Friday afternoon), and a race for the Modified cars on Saturday, won by Peter Sachs in his FM Lotus 23 #37, with second place and first in CM (upclassed, as there were no other DM or EM cars) taken by Joe Buzzetta's #7 "Bosch Special" Porsche.
 M.R.J. "Doc" Wyllie took GM in his ubiquitous #7 Lola, Chuck Dietrich 2nd in GM with the #88 Bobsy, with GM honorable mention in 3rd going to local resident and motorsports legend John Fitch in a BMC #45.
The July 1, 1961, race at Lime Rock Park was the seventh racing event of the eleventh season of the Sports Car Club of America's 1961 Championship Racing Series.

Question: The revived version of Lime Rock Grand Prix in 2017 is what  North American auto racing series launched by the Sports Car Club of America
Answer: Pirelli World Challenge