Ralph David Firman Jr. is a British-born former racing driver who raced under Irish citizenship and an Irish-issued racing licence. Earlier in his career he raced under a British licence. His father, Ralph Firman Sr., co-founded the Van Diemen racecar constructor with Ross Ambrose, father of V8 Supercars champion Marcos, then more recently founded RFR. He is married to Aldís Kristín Árnadóttir, an Icelandic UK-educated lawyer. Ralph's sister, Natasha, is also a racing driver.

Van Diemen International, Ltd. was a British race car manufacturer based in Snetterton, Norfolk, United Kingdom. The company had a reputation for high-volume production runs of its cars, the most well-known of which is its series of Formula Ford chassis, which have been at the forefront of that class of motorsport for over 20 years and led it to becoming the largest manufacturer of bespoke racing cars in the world.