This circuit is a North American series defined by shorter races that emphasize Cadillac power and performance found in the ATS-V.R models. After a decade-plus long run that’s amassed numerous championships, Cadillac Racing has withdrawn from the Pirelli World Challenge program. Cadillac has reaffirmed its commitment to the Prototype class of the IMSA WeatherTech SportsCar Championship for 2018, where it will continue to support its Cadillac DPi-V.R entries.
“In 2018, we will take a pause in Pirelli World Challenge as we focus completely on our effort in prototype sports car racing,” said Rich Brekus, Global Director of Product Strategy for Cadillac.
IMSA is a sports car racing series based in the United States and Canada that features longer endurance races. The races fall into three different types, and lengths of races. The sprint format is 2 1/6 hours. The Intermediate race is usually a 6 hour race (typically run at Laguna Seca each year) and the endurance races are 10 hours or longer. Examples of the endurance format are races such as the Daytona 24, 12 hours of Sebring, and Petit Le Mans, which is 10 hours, and which is run at Road Atlanta.
Cadillac prototypes are specially redesigned each year, using data and race results from previous years as a guide. In September 2016, the all new DPi-V.R was launched, and it began competing in this series, winning the Daytona 24 the following January, and also sweeping the podium at the Twelve Hours of Sebring with a 1-2-3 finish.
Drag racing is a type of automobile racing in which automobiles or motorcycles (usually specially prepared for the purpose) compete two at a time, to be first to cross a set finish line. The race follows a short, straight course from a standing start over a measured distance, most commonly ¼ mile (1,320 ft (402 m)), with a shorter 660 ft (201 m) (1/8 mi) becoming very popular in some areas of the country. The winners are determined by the fastest elapsed time (ET).
In North America, closed circuit road racing is motor racing held on a paved closed circuit with both left and right turns. Road racing may be on purpose-built race tracks (called road courses) or on temporary circuits, such as closed-off airport runways and public roads, typically street circuits. A "roval" is a road course incorporating parts of an oval track and its infield, such as is used for the 24 Hours of Daytona at Daytona International Speedway. For road racing the goal is to maintain the fastest average lap times in a competitive race over a fixed amount of time in order to finish the race in first place.
Land Speed Racing (LSR) is the highest speed achieved by a person using a vehicle on land in a controlled environment such as the Bonneville Salt Flats or an airport runway. Both 1/2 Mile and 1 Mile LSR events have been popularized over the past decade by organizations such as the US Mile Racing, wannaGOFAST and SHIFT-S3CTOR. Typically the 1 mile events are a single vehicle on the runway making an attempt to achieve a top speed from a standing start during a 1 mile pass down the runway. At 1/2 Mile events, there typically are two vehicles lined up side by side and depending on the preference of the drivers or the type of event, the launch may be from a standing start or a 40-60 MPH roll. For LSR events the goal is the fastest trap speed.