#240 Driving in London over the holidays. Build tolerances in cars and running them in. Driving, charging and parking electric vehicles safely in north Wales. Sniff Petrol on Honda and The FIA and 80s names. Plus what car has Richard “slightly" bought?

#239 Nissan Leaf. Gareth drives an electric car from London to Liverpool. What are the challenges of driving this sort of car on a long journey? Gareth finds out, by boldly going onto Britain’s motorways to test the rapid charging network.

#238 On Speed 2014 Festival Season Special. We play car-based family games and engage in some Secret Santa classic car gift-giving. Sniff Petrol on: Christmas with Bernie Claus, the VAG Group and a seasonal message from Morgan. Plus Melissa J Heathcote sings Why Did they make Nigel Mansell Santa Claus.

#237 Lewis Hamilton 2014 F1 World Champion. Are we happy though? What next for the double champion. Who could beat him next year? The golden age of British motorsport. Sniff Petrol on Carlos Sainz Jnr and Jenson Button. Plus Gareth sings Lewis’s anthem.

#236 Cheating in Motorsport, we ask who was the worst, and who did it best? Gareth spends a week in a new,new VW Beetle Convertible. Retro design, what we’d like to see more of. Plus Sniff Petrol on Bernie Ecclestone and the South Wales Police.

#235 F1 in crisis. What does the disappearance of Marussia and Caterham really mean? Is it Bernie’s fault? Where’s Alonso going to be next season? Will there be new teams? Plus Sniff Petrol on sports news headlines, facial hair and a brand-new Formula.

#234 Bloodhound SSC Special. Gareth takes a guided tour of the Bloodhound Technical Centre in Bristol, where a team of automotive, aeronautical and rocket engineers explain the challenges of the design and construction of the fastest car in the world.

#233 How we’d change Formula E to make it better. We try to answer the question, what is the best car in the world? Plus Sniff Petrol on hover cars, Nico Rosberg and Pastor Maldonado. Plus new On Speed Music “I Just Don’t Get Formula One”.

#232 Paris 2014: We pick the stars of the show, but is it worth going? Hyundai goes on-line, Renault goes all crossover but where’s Benz gone? Plus: Sniff Petrol on foreign substances, Max Verstappen and the New Mondeo.

#231 Collecting and building model cars, a new use for talcum powder, a fortnight in the Mercedes-Benz GL350AMG and the Dodge Durango. Plus what’s with the new Land Rover Discovery Sport? Plus Sniff Petrol on Formula E, pit radio and what Scotland wants.