The 90-second spot was shot over six nights at an airport in Mexico. It consists of an elaborate 800-metre race, shot on a runway and lit by 200 blue sidelights, where numerous coloured trucks come to life and compete against each other.
In the ad, a small unassuming one-man vehicle plays the underdog that battles against other engines, including baggage transporters, lorries and motorised stairs.
Two 35mm film cameras, two high-definition cameras and a crash-camera were used to give the footage a fluid sense of motion.
The trucks, selected from airports across Mexico, were "pimped" to assume different characteristics. The modifications took three weeks and involved processes including sandblasting, paint jobs, engine rebuilds, structural work, replacing wheel hubs, new tyres, changing lights and refitting interiors.
Phil Rumbol, Cadbury's marketing director, said: "We recognised that ‘gorilla' had an enigmatic, almost random
element to it that audiences had responded to, and had generated masses of debate online. That was something we wanted to make even more explicit in this next film.
"It's like saying: ‘Don't tell people you're funny; tell them the joke.'
"This campaign is the antithesis of the hard sell and is about delivering joy there and then."
Rumbol said "Glass and a Half Full Productions" would be a long-running campaign that could "broaden into
different genres of entertainment beyond film" .
"What we are focused on is the response. The key question we ask is: ‘Will people see this and have a moment of unmistakeable joy?' That is the acid test."
The ad was produced by Blink and involved 140 cast members.