car performance

Petrol is something millions of drivers around the UK rely on, but when faced with the choice of what to fill up with at the pumps, many wonder what is the difference between regular and premium unleaded?

That’s exactly what listener Irfan wanted to know, and if premium can really deliver on its promises to make your car more efficient, take you further, and clean out your engine for a higher price tag.

Greg Foot drives the investigation into unleaded petrol, what’s changed since we moved from E5 to E10 as our standard, what makes premium special, can it take you further, and whether our carbon footprint is better with one than the other?

PRESENTER: Greg Foot PRODUCER: Kate Holdsworth

Is Planet NASCAR governed by the same laws of physics as the rest of Planet Earth? You wouldn’t know it from some of the responses to Neil deGrasse Tyson’s tweets about the sport. Gary O’Reilly and Chuck Nice bring Neil into the studio to unpack the physics in his NASCAR tweets.
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