The 2008 Race of Champions was the 21st running of the event, and took place on December 14, 2008 at Wembley Stadium, London.
 Two special races were due to take place during the event, the first of which, with Olympic gold medallist Chris Hoy cycling against the reigning Formula One World Champion Lewis Hamilton, who was due to be driving a Mercedes road car.
 However, due to the slippery track at Wembley, Hoy could not take part on the bicycle.
 Hamilton did demonstrate his championship-winning Vodafone McLaren Mercedes Formula One car at the event, his first major British public appearance since winning the F1 title.
 There was also a celebrity race, with eight celebrities taking part in Fiat 500 Abarth Assetto Corses.
 These celebrities were Hoy, boxers Frank Bruno, David Haye, Amir Khan and Enzo Maccarinelli, chef James Martin, footballer Bacary Sagna and singer Shayne Ward.
Paul Bonson (born 18 October 1971) is a retired professional British cruiserweight boxer from Featherstone, Yorkshire, England.
 During his career he fought a number of notable fighters including future world champions Enzo Maccarinelli, Clinton Woods and Carl Froch.
 His professional record stands at 21 wins, two by way of knock-out, 105 losses and eight draws in 134 bouts.
Bruce "Lionheart" Scott ( (1969--) 16 1969 (age (2017)-(1969)-((11)<(08)or(11)==(08)and(30)<(16)) ) ) is a Jamaican/British professional light heavy/cruiserweight boxer of the 1990s and 2000s, who won the British Boxing Board of Control (BBBofC) Southern Area cruiserweight title, BBBofC British cruiserweight title, and Commonwealth cruiserweight title (twice), and was a challenger for the Commonwealth light heavyweight title against Nicky Piper, World Boxing Organization (WBO) cruiserweight title against Johnny Nelson, World Boxing Council (WBC) cruiserweight title against Juan Carlos Gómez, Commonwealth cruiserweight title against Adam Watt, and World Boxing Union (WBU) cruiserweight title against Enzo Maccarinelli, his professional fighting weight varied from 173 lb , i.e. light heavyweight to 199+1/4 lb , i.e. cruiserweight.
Ring 8 and New York State Boxing Hall of Fame refers to Ring 8, a nonprofit organization located in New York City founded in 1954 by ex prize-fighter Jack Grebelsky to help former professional boxers in need of financial assistance, including housing, medical care, and funeral related expenses.
 Ring 8 is composed of current and ex professional, amateur, and collegiate boxers, referees, trainers, promoters and others involved in the fight game.
 Ring 8's current president is boxing promoter Bob Duffy, a former New York State Boxing Commissioner.
 The group holds monthly meetings in Long Island City at The Waterfront Crabhouse, and an annual Holiday Party in December as well as a picnic each year.
 Ring 8 members past and present include Rocky Graziano, Joe Miceli, Vito Antuofermo, Juan Laporte, Tony Mazzarella, Bobby Cassidy, Matt Saha, Gil Clancy, Emile Griffith, Tony Napoli, Mark Breland, Junior Jones, Renaldo Snipes, Vinny Madalone, Danny Giovanelli, Bill Tate, Bobby Bartels, Henny Wallitsch, Tommy Gallagher, and Sandy Sadler.
The Newbridge Boxing Club is a boxing gym operated by Enzo Calzaghe and based in Newbridge (Tre Celyn) in South Wales.
 The club has been one of the most successful of recent years, at one point in 2007 boasting three genuine world champions in Joe Calzaghe (WBO super-middleweight), Enzo Maccarinelli (WBO cruiserweight) and Gavin Rees (WBA light welterweight) .
 Other fighters of note who have won belts at the club include former Commonwealth light middleweight champion Bradley Pryce and former WBU champion and world title challenger Gary Lockett who retired in Sept 2008.
Boxing is a popular sport in Wales, and since the early 20th century Wales has produced a notable number of professional boxers including several World Champions.
 The most notable boxers include Wales' first World Champion Percy Jones; Jimmy Wilde, who is seen as pound-for-pound one of the World's finest boxers and Joe Calzaghe, who ended his career an undefeated World Champion.
Gary Delaney ( (1970--) 12 1970 (age (2017)-(1970)-((11)<(08)or(11)==(08)and(30)<(12)) ) ) born in Newham is an English professional light heavy/cruiser/heavyweight boxer of the 1990s and 2000s.
 He won the British Boxing Board of Control (BBBofC) Southern Area light heavyweight title, World Boxing Board (WBB) light heavyweight title, World Boxing Organization (WBO) Inter-Continental light heavyweight title, BBBofC Southern Area cruiserweight title, and Commonwealth light heavyweight title (twice), and was a challenger for the BBBofC British heavyweight title, and Commonwealth heavyweight title against Julius Francis, World Boxing Organization (WBO) Inter-Continental cruiserweight title against John Keeton, and Jesper Kristiansen, BBBofC British cruiserweight title, and Commonwealth (British Empire) cruiserweight title against Bruce Scott, and World Boxing Union cruiserweight title against Sebastiaan Rothmann, and Enzo Maccarinelli, his professional fighting weight varied from 174 lb , i.e. light heavyweight to 231 lb , i.e. heavyweight.
Enzo Maccarinelli (born 20 August 1980) is a Welsh former professional boxer who competed from 1999 to 2016.
 He held the WBO cruiserweight title from 2006 to 2008, and at regional level the European and British cruiserweight titles between 2010 and 2012.
 Nicknamed "Big Mac", Maccarinelli was known as a crowd favourite, and during his career accumulated an 80.4% knockout-to-win ratio.
Michael Helliet Management is a London based agency that provides professional boxing management and currently represents over 40 professional boxers including Heavyweight Danny Williams and Undefeated English Champion Ashley Sexton.
 Michael Helliet Management currently manages more boxers than any other agency within the UK.
A weight class is a measurement weight range for boxers.
 The lower limit of a weight class is equal to the upper weight limit of the class below it.
 The top class, with no upper limit, is called heavyweight in professional boxing and super heavyweight in amateur boxing.
 A boxing match is usually scheduled for a fixed weight class, and each boxer's weight must not exceed the upper limit.
 Although professional boxers may fight above their weight class, an amateur boxer's weight must not fall below the lower limit.
 A nonstandard weight limit is called a catch weight.

Question: Paul Bronson and Enzo Maccarinelli are professional boxers in what class?
Answer: cruiserweight