Boy racer is a term given to a young person who drives in a fast and aggressive manner; it has become a broader term for participants in modern custom car culture who tune and modify cars with street racing-style aftermarket cosmetic and performance parts such as body kits, audio systems and exhausts. The culture encompasses a broad range of car types including sport compacts and economy cars typical of the import scene, this is in contrast with the hot rod culture of previous generations. Some car enthusiasts and modifiers feel the term labels them as deviant and anti-social and are keen to distance themselves from the term. Boy racer is a term mostly but not exclusively associated with the UK, in Australia and New Zealandhoon is sometimes preferred. In the US, "Rice boy" or "Ricer" is a derogatory term for the driver or builder of an imported hot rod, or someone who modifies their car in a cheap way to imitate the look of a higher performance vehicle. Responses to the boy racer phenomenon range from laws prohibiting certain cosmetic modifications to vehicles such as decorative lighting or tinted windows to restrictions on cruising.
The term boy racer is used in New Zealand to describe a youth that drives any form of vehicle that is Australian and/or has been modified in any way. The Land Transport Amendment Act 2003 is commonly known as the "Boy Racer Act". In 2009, a government led by the National Party augmented the Act with the Land Transport Amendment Act and the Sentencing Amendment Act, which allow police to confiscate and "crush" vehicles on the third offence within four years, issue infringements for "cruising" and prosecute street racing and "antisocial" behaviour, by creating temporary by-laws. The first car crushing sentence was passed down in December 2011. The first car to be crushed in accordance with this act was a white Nissan crushed at a Lower Hutt scrap yard on the 21 June 2012 by New Zealand Police Minister of the time Anne Tolley. The crushed Nissan is now on display at The Museum of Transport and Technology in Auckland. While the slang word "bogan" generally has a broader meaning, it is often used in New Zealand in reference to owners of larger Australian cars, like Ford Falcons or Holden Commodores. Most cheap vehicles in New Zealand are used Japanese imports and the culture follows modification of these cars.