Their uniforms don't show any wear or tear, although some practically lived in them for years.
The car wreck where the sniper was hiding is clearly a post WWII Land Rover (a series-II or III build after 1958)
The motorcycle which delivers our volunteer Private Serra at the beginning and then rescues him at the end is a Moto Guzzi SuperAlce. That particular model wasn't released by Moto Guzzi until 1946. The accurate machine would have been the forerunner model Alce.
When Serra and Rizzo start out on their patrol in the Qattara Depression, and right before the mirage called Morgan le Fay appears, there is some dialogue between the men but they are clearly not talking.