In conversation with legendary junior single-seater team boss Ralph Firman Sr.

On this week's show, we have a special interview with Ralph Firman Sr, the former boss and co-founder of the Van Diemen outfit. The marque is perhaps best-known for its longstanding history in Formula Ford racing but also has raced in Formula Renault, Formula 3 and in the United States. Motorsport greats to have raced in Van Diemens include Ayrton Senna, Dan Wheldon, Mark Webber, Jason Plato and Eddie Irvine to name but a few, some in the famous Duckhams Racing colours. Ida Wood caught up with Firman during last year's Formula Ford Festival, where he was watching his old friend Roberto Moreno in action in a Van Diemen of the same specification he ran way back in 1980.