#319 Start-ups and Richard’s new Porsche. We look at some of the best and worst car start-ups that have emerged or vanished in recent years. Richard shows us his Porsche 997 Carrera S. Plus Sniff Petrol on Aston Martin in F1 and the Vanguard GT.

#318 The Singapore Grand Prix and Frankfurt. How badly did Vettel mess up his championship and how lucky was vegan poet Lewis Hamilton? Sniff Petrol on the Honda-Toro Rosso partnership and F1 pit communications. Plus the stars of Germany’s motor show.

#317 Volvo V90 D4 Momentum. Gareth spends a week driving, and being driven by a car with level 2+ autonomy. How good is Volvo’s Pilot Assist and does the classic estate car still have a role in an age of SUVs?

#316 Fastonbury: The 2017 Gareth Jones On Speed Summer Music Compilation. Andy Kerbshaw live at the greatest music and motorsport festival. With Alonso, Magnussen, Kubica, Palmer, from F1 and Meeke and Evans from the WRC. Plus new music from The Sundaes.

#315 Motorsport Exodus. Gentlemanly behaviour on track, and shenanigans in F1 and other race series. The halo come to F1, Porsche leave the WEC, and the mp4e towards electrification in cars and motorsport. Plus Sniff Petrol on an F1 returnee and Beyoncé.

#314 Ford Focus RS. Gareth spends a week in Ford’s best drivers’ car on some of Wales’ best driving roads. Does this very highly-modified family 5 door hatch satisfy Gareth’s inner Elfyn Evans?

#313 The 2017 24 Hours Of Le Mans Pt2. The race mp4es into the night and we mp4e to the bar for a “Top-Up” with friends, listeners, and touring car driver Tom Ingram. Plus the stunning sound of the cars during the dramatic climax to the big race.

#312 The 2017 24 Hours Of Le Mans Pt1. Gareth, Stevie and Zog take up a position in the main grandstand to witness the pomp and circumstance of the build-up along with the thrilling start and the exciting first stages of the world’s greatest motor race.

#311 The Trip To Le Mans. The On Speed team take a Jaguar XJ R-Sport to the Circuit De La Sarthe. We look and listen to the cars running the 24 Hours Of Le Mans this year and tell the story of three dramatic years from the rich history of the great race.

Video#49 Damien Sung vs Gareth Jones On Speed. A talented filmmaker and editor recounts his experience of the 2016 Le Mans 24 Hours in partnership with the On Speed team. Directed, written, shot, edited and produced by Damien Sung www.damnsung.tumblr.com