Remarkably similar to Cy Endfield's 'Hell Drivers', which came out slightly earlier; but that was probably a coincidence.
This probably owes it's provenance more to Hollywood blue collar road movies of the forties like 'They Drive by Night' and 'Thieves Highway' - with a bit 'The Wages of Fear' thrown in - while the Brylcreemed, zoot-suited villain Joe Easy is presumably based on Johnny Friendly in 'On the Waterfront' and his sidekick played by Peter Reynolds on Rod Steiger's Charley.
This probably owes it's provenance more to Hollywood blue collar road movies of the forties like 'They Drive by Night' and 'Thieves Highway' - with a bit 'The Wages of Fear' thrown in - while the Brylcreemed, zoot-suited villain Joe Easy is presumably based on Johnny Friendly in 'On the Waterfront' and his sidekick played by Peter Reynolds on Rod Steiger's Charley.