This is a 1/76 OO Scale Oxford Diecast vehicle in mint condition, the box is mint. 

The track is named Matilda

The Scania Highline truck looks pretty 'normal' and comes decorated in the modern Stobart red, green and white livery, registered PJ13 GAA. However, the appeal is almost certainly centred on the trailer which is loaded with Steady Eddie cartoonlike characters in glorious colours along the sides and the rear, promoting Happy Journeys for Kids.