Silverstone Classic 2021 on the Wellington Straight. The Ginetta-Zytek GZ09S was a LMP1-class Le Mans prototype race car, built by Zytek Engineering following their partial merger with Ginetta. It was an evolutionary update of the Zytek 07S, with the bodywork altered for the 2009 LMP regulations. The GZ09S/2 was a LMP2-class version of the same car (for 2011, it became a LMP1-class car, due to rule changes, and became known as the Zytek 09SC.) In 2011, its successor, the Nissan-engined Zytek Z11SN, made its competitive debut, following the latest rule changes to the LMP regulations. The GZ09S was retired at the end of that season, as it was no longer eligible to compete. (https://en.wikipedia.org/wiki/Ginetta-Zytek_GZ09S)
Silverstone Classic 2021 on the Wellington Straight. The The Gibson 015S was first developed as the Zytek Z11SN, its a LMP2-class car, which has been built by Zytek Engineering since 2011. It is an evolution of the Zytek 07S and the Zytek 09SC, updated for the new Le Mans Prototype regulations that were introduced in 2011. It has been predominantly used in the European Le Mans Series and the 24 Hours of Le Mans, and a Greaves Motorsport-entered Z11SN won the LMP2 categories of both series in 2011.[4] In 2014, Jota Sport won the LMP2 category of the 24 Hours of Le Mans with a Z11SN. In 2015, following Zytek's rebranding to Gibson Technology, the Z11SN was updated to the Gibson 015S. (https://en.wikipedia.org/wiki/Zytek_Z11SN)
Silverstone Classic 2021 on the Wellington Straight. The Ligier JS P3 is an LMP3 Le Mans Prototype. It was created by Onroak Automotive, and named in partnership with former French driver Guy Ligier. It was built to meet ACO LMP3 standards, and is active in various LMP3 championships worldwide, such as the European Le Mans Series, IMSA Prototype Challenge, and the Asian Le Mans Series. The car has proven to be immensely popular in the category, with over 100 cars being produced since 2015. It has also proved to be one of the most successful prototypes in the class, with a total of 103 overall wins and class victories from 132 races entered by the car. (https://en.wikipedia.org/wiki/Ligier_JS_P3)
Silverstone Classic 2021 on the Wellington Straight. The Oreca FLM09 is built by French manufacturer Oreca. The chassis is based on Courage's LC75 LMP2 chassis, while the car's carbon fiber and kevlar bodywork is a simplified version of the LC75's design. All FLM09s use a production-based General Motors small block LS3 V8 which produces approximately 430 horsepower (440 PS). Transmissions are supplied by Xtrac and feature a six-speed sequential transmission operated by paddle shifters. Engine management is regulated by Magneti Marelli. Up to 2012, all FLM09 cars ran on Michelin slick tires based on their LMP tires but in March 2013, it was announced that Continental AG would be the tyre supplier for the LMP Challenge class in the upcoming American Le Mans Series season owing to Continental's deal with NASCAR as sole tyre supplier for their sportscar arm. Reinforced carbon-carbon disc brakes are supplied by Brembo. In order to accommodate endurance races in 2010, Oreca also offers an endurance upgrade for the FLM09 which adds an air restrictor to the engine to increase reliability as well as slowing the car in comparison to LMP2 category cars. (https://en.wikipedia.org/wiki/Le_Mans_Prototype_Challenge)