(born July 12, 1980) is a British car racer, currently living in the United States. She is also the female driver ambassador to the Women in Motorsport Commission of the FiA (Federation Internationale de l’Automobile). She currently races for the GEAR/Grasser Lamborghini team in the IMSA WheatherTech SportsCar Championship and for Richard Mille Racing in an Oreca Prototype in the ELMS and at LeMans. In 2017 and 2018 raced a factory backed Acura NSX with Michael Shank Racing, winning numerous races and finishing runner up in the 2018 season. From 2013 to 2016, she raced the famed DeltaWing car in the United Sports Car Championship. In 2012, she raced in Indycar, completing the Indy 500 multiple times. From 2008-2010 she raced in Europe in the DTM series for Audi. In 2006 and 2007 she raced in Champ Car, becoming the first woman to lead a lap in Champ Car series history, when she led 12 laps at Milwaukee. In 2005, Katherine competed in the Toyota Atlantic Championship, winning the series opener at Long Beach in her first career Toyota Atlantic start and becoming the first woman to win a developmental open-wheel race in North America. She won two more races that year and finished third in the championship. She received the Toyota Atlantic BBS Rising Star 2005 Award and the 2005 RACER Magazine “Most Promising Road Racer of The Year” Award. In 2005, Katherine became one of the few women to ever test a Formula One car and also became the first woman to test an A1 Grand Prix car. In 2001, she beat Kimi Räikkönen’s lap record and was the first woman to receive the BRDC’s “Rising Star” accolade.