Episode Six - S3-E6
Continuity mistake: When Gavin and Smithy are side-by-side on the motorway and talking to each other, when we see Gavin's car there is a green and white lorry behind him in Smithy's lane. When we see Smithy's car, there is a silver saloon directly behind him.
Episode Six - S3-E6
Continuity mistake: When Smithy is driving to Wales for the wedding, the head restraints are missing from the front seat. The next shot is an exterior shot of the car and the head restraints are back in.