[2] Filming locations for the second series included: Blair Drummond Safari Park, Bury, Burnley, Nelson, Wirral and Southport.

The first of these, Peter Kay's Car Share Unscripted, was partially improvised but incorporated prepared radio material and visual gags.

The series focuses on supermarket assistant manager John Redmond (Kay) and promotions rep Kayleigh Kitson (Gibson), who are participating in their work's car-sharing scheme.

The first half of each episode shows John picking up Kayleigh from her house in his red Fiat 500L and the pair having discussions about each other's lives as they travel to work.

As they travel to and from work, John and Kayleigh listen to Forever FM; a fictitious radio station which has music alternating with terrible advertisements and promotions.

Surprising billboards at the roadside and on vehicles provide an additional source of interest ("Brazilian wax while you wait", "One meal for the price of two", "No pies left in this van overnight", "Shaun Ryder Rehab Centre", "HALALDI" and others), as well as the radio adverts and announcements.

[5] Inspiration for the show, for co-creators Tim Reid and Paul Coleman, included Alfred Molina and Dawn French in the BBC's Roger & Val Have Just Got In and The Smoking Room.

[6] The programme was mainly filmed in and around Manchester, Farnworth (Bolton), Westhoughton, Horwich, Swinton, Bury, Walkden, Altrincham (Trafford) and Little Hulton (Salford).

The exterior was dressed with fake windows containing large images of fresh fruit and vegetables, with car park features, trolleys, staff uniforms and signage in the style and colours of Tesco.

In episode 3 of series 1 two members of Halfords staff in their gold and black uniforms can be seen in the unloading bay as John and Kayleigh drop off their colleague "Stink" Ray (Reece Shearsmith) the fishmonger.

[14] An exclusive screening of all six episodes of the first series was held in Blackpool on 28 March 2015, in aid of Chorley children's hospice Derian House.

This results in a visit to the car wash to clean the now dirty windscreen, and while they are there, Kayleigh's unusual fear of water is discovered when she suffers a panic attack.

During the work shift, Kayleigh falls out with boss Dave Thompson over an incident on fruit and veg, leaving repercussions for the journey home.

To make matters worse, Kayleigh has agreed to take her niece Chloe and nephew Alfie to school, meaning they will share the car that morning too.

As John drifts off in a daydream, he imagines himself, in a leather jacket and Beatle cut, singing Cliff Richard's "Devil Woman" with Rachel from work as a lithe, cat-suited red devil-woman, dancing tauntingly around him.

Forever FM Playlist: John Farnham - You're the Voice, Deacon Blue - Chocolate Girl, Kid Creole and the Coconuts - Annie, I'm Not Your Daddy, Steve Winwood - Valerie, Rick Astley - Cry for Help, Right Said Fred - Don't Talk Just Kiss, Haircut 100 - Love Plus One, Paul McCartney & Stevie Wonder - Ebony and Ivory, Joan Jett - I Love Rock 'n' Roll, The Feeling - Never Be Lonely, Amy Grant - Baby, Baby, Jane Wiedlin - Rush Hour, Extreme - More Than Words, Kayleigh gets John to play her 'Now That's What I Call Christmas' album on their journey to work in the height of Summer.

Forever FM Playlist: Mariah Carey - All I Want For Christmas Is You After moving in with her sister Mandy and her family, Kayleigh is now travelling to work on her own by bus and train, but cannot resist temptation and repeatedly calls John.

Forever FM Playlist: Jermaine Stewart - We Don't Have to Take Our Clothes Off, Enigma - Sadness, The Spinners - Working My Way Back to You, Bardo - One Step Further, Ronan Keating - Life Is a Rollercoaster, Gwen Stefani - The Sweet Escape, Wet Wet Wet - Sweet Little Mystery, REO Speedwagon - Can't Fight This Feeling John and Kayleigh are full of high spirits as they head off on their annual works do, dressed as Harry Potter and Hagrid, but things don't go according to plan when John is lumbered with taking both drunk colleague Elsie (Conleth Hill) who is dressed as Smurfette, and a drunk Kayleigh home.

Kayleigh has had enough of work and fancies a day off but John disapproves of the idea as he has to visit the store manager and best friend Ian "Litchy" Litchfield, at the Wigan branch.

Eventually he agrees to ditching work (after visiting his friend Litchy at the Wigan store) and decides to go to Seaview Safari Park with Kayleigh.

As the final episode concludes and the pair sit stuck in gridlock, Kayleigh declares her love for John and believes that he doesn't feel the same way, so she leaves the car and gets into a taxi while crying.

In this mostly improvised one-off episode, John and Kayleigh drive through Salford from work, commenting on the songs and adverts playing on Forever FM, and talking about everything from what the U stands for in club sandwich to films they have never seen.

After the final specials aired, Kay confirmed they were initially filmed in the series 2 recording block, but 2 episodes were held back for the following year.

Forever FM Playlist: Yes - Owner of a Lonely Heart, Annie Lennox - Waiting in Vain, Another Level - Freak Me, Transvision Vamp - Baby I Don't Care, Big Audio Dynamite - E=MC2, Joan Armatrading - Drop the Pilot, Wax - Bridge to Your Heart An audio-only special eavesdropping on John and Kayleigh as they make another average day’s journey to work, talking about the past, from Benny Hill to play parks, released on BBC iPlayer.