- Country: UK
- Genres: Drama, Romance, Sport
- Release: 1949-05-09
- Director: Jack Lee
- Writers: Montagu Slater , William Rose (I) (1914–1987) , Jack Lee , Cliff Gordon
- Language: English
- Stars: Dirk Bogarde , Bonar Colleano , Bill Owen , Renée Asherson , Thora Hird , James Hayter , Patric Doonan , Moira Lister , Sidney James , Dudley Jones
- Runtime: 76 min
- Awards: Nominated for 1 BAFTA Award1 nomination total
- AKA: Once a Jolly Swagman , Maniacs on Wheels (United States of America) , Wettfahrt mit dem Tod (Austria) , Wettfahrt mit dem Tode , Once a Jolly Swagman (South Africa) , Once a Jolly Swagman (United Kingdom) , Speedway-Fantomen (Sweden)
- Plot: Factory worker Bill Fox (Sir Dirk Bogarde) is fired from a reliable job and becomes a successful motorbike racer, until his wife threatens to leave him unless he comes to his senses.
- IMDB:tt0040666
Maniacs on Wheels Cast · · · ALL
Jack Lee
Director
Dirk Bogarde
Bill Fox
Bonar Colleano
Tommy Possey
Bill Owen
Lag Gibbon
Renée Asherson
Pat
Thora Hird
Ma Fox
James Hayter
Pa Fox
Patric Doonan
Dick
Moira Lister
Dotty Liz
Sidney James
Rowton
Dudley Jones
Taffy
Pauline Jameson
Mrs. Lewis
Cyril Cusack
Duggie
Anthony Oliver
Derek
Russell Waters
Mr. Pusey
Sandra Dorne
Kay Fox
Stuart Lindsell
Mr. Yates
Michael Kent
Solicitor
Cyril Chamberlain
Reporter
Jennifer Jayne
Autograph Seeker (uncredited)
Edward Judd
(1932–2009)
Cheering Crowd Member (uncredited)
Sam Kydd
Johnny Briggs (uncredited)
Andrea Lea
Guest at Chelsea Party (uncredited)