Join presenter Derek Murray as he catches up with the Air an Rathad team this Easter, in the Wacky Races Special. All your favourite Wacky Races challenges in one programme! That's 8 gruelling races to test our plucky presenters to the limit. Fiona, Murray and Calum Iain may be friends, but they are ruthlessly competitive. Watch them battle it out on the track, in their own version of basketball, with the help of Rollover Roy! There's jelly and eggs to play with, and a strange new game called car curling. Murray thinks he's got Calum Iain beat in the karting, but in the end the rules beat him, despite a tremendous effort by his young team mate Jamie. There's more dressing up, and the lovely Lola returns for a spot of je ne sais quoi. Who will win the Air an Rathad Cup this time? And what really goes on, behind the scenes?

Fiona travels to Switzerland to visit Rinspeed Concept Cars, where they develop cars of the future. So what exactly will we be driving in 2020? You'll have to watch to find out! Calum Iain is a happy man as he gets his hands on a Focus RS500 - it may look like an ordinary hatchback, but this version does 0-60 in 5.5 seconds! He leaves the statistics to twin brother Iain Calum and lets the accelerator hit the floor. Murray is in Ness behind the wheel of his favourite vehicle - his tractor - as he takes part in an island rally. Ten hours later and he's arrived at Rodel, saddle sore but happy to have raised a few pounds for charity. It's the last programme of the series and that means it's the last challenge for Wacky Races - who will win this year? Tune in for the thrilling finale!

Earlier this year Calum Iain took the dust sheets off the Evo to give it a spin at the Granite City Rally. Murray reports on all the action as we follow Calum Iain and SRC favourite David Bogie over a challenging route. Fiona is in Falkirk trying out the teenie weenie Toyota IQ. It's not big, but is it clever? The Murray family pile the kids in the back seat and take the Hyundai IX35 for a spin round Livingston. They are looking for a roomy, practical family car - so does the Hyundai hit the spot? And there's a 'carfuffle' on the track in this week's Wacky Races - Murray's not at all happy with the scores. Who's in the lead this week?

The smell of burning rubber is in the air - Calum Iain is at Knockhill for Modified Live's Time Attack Trials and the European Drift Championships. There's plenty of speed and action as the Drifters make full use of the Knockhill circuit, plus every kind of modification on view. Fiona is also enjoying the races - she's at Arlary House Stables watching champion trainer Lucinda Russell's thoroughbreds being put through their paces. She's also test driving the new Range Rover Sport - odds on it's a winner? Under 25? Ever tried to get car insurance? Watch as Murray investigates the best way to get covered without robbing the bank. And there's more Wacky Races for your entertainment - this time it gets messy!

Calum Iain heads to the Borders for The Jim Clark Rally, mainland Britain's only closed road event, where he follows the fortunes of Lewis drivers Donald Riddell and Donnie Campbell. Is the MG a timeless classic? Fiona visits Mercury Classic Cars in Fife to discover what makes these cherished sports cars so special. Murray gets his hands on a hot hatch for change - with a twist - the hybrid Honda CRZ. Has Honda succeeded in making an eco car cool? Watch as Murray puts it through it's paces. Plus, the team dress up for a right royal ruckus as they fight for pole position in Wacky Races!

Fiona and Murray join Highland Old Skool Fords Car Club as they enjoy a weekend of car packed activities, including rallying, autotesting and drag racing on Lewis. Fiona gets her first lesson behind the wheel of an articulated lorry - can she cut it as a trucker? Murray is test driving the Audi A1. He may be a fan of the Audi brand, but is this baby of the range a tad too small for his liking? And Calum Iain is keen to defend his Wacky Races title. What on earth are they up to on the track this week?

Calum Iain has a dream come true when he finally gets behind the wheel of a Porsche Carrera 911 4S. The weather may be terrible on test drive day but it can't wipe the smile off his face. Fiona swaps 4 wheels for two as she joins members of Peterhead Scooter Club on their 25th anniversary rally. Last time she tried two wheels she fell off, let's hope she fares better tonight! And Murray is in a remote part of Argyll, home to the largest coastal superquarry in Europe, with giant Tonka toys to play with. There's another Wacky Race to test their driving skills - who will be top of the leaderboard this week?

How do you get started in motorsport? Calum Iain joins the competitors at Fintray Hill Climb to find out. Murray's gone back to the day job looking after the sheep on the croft, and he's putting the Isuzu Rodeo pickup through its paces - but is it tough enough for the task? Fiona is a guest of Grampian Fire Brigade as she joins them on a blues and twos exercise through the busy streets of Aberdeen. She gets some tips on how to manoeuvre through heavy traffic and finds out what you should do as a driver when you hear that siren and see the blue lights flashing. Plus the team are back on the track for another round of Wacky Races - what daft stunt have they been given this week?

The new series of Air an Rathad starts with a stunner - our very own Calum Iain takes on champion precision driver Paul Swift at his home track in Doncaster. After a masterclass on how to drive on two wheels, Calum Iain and Paul go head to head in an autotest challenge - but who's the winner? You'll have to tune in to find out! Fiona is in Arbroath test driving a sporty little number - the Seat Leon Cupra. It's a right nippy sweetie, but is it perfection or confection? Murray reminds us that there is snow and ice on the way as he finds out how best to drive in the worst of wintry conditions. And everyone's favourite - Wacky Races - is back! Lots more silly things to do with cars, and tonight there's a mystery guest joining the team on the track.