Kiwi Courtney Duncan suffered a tough weekend at the Motocross World Champs in Assen.

Earl Bamber and Marcus Armstrong take race wins.

Marc Marquez moved back to the top of the MotoGP standings with a win in San Marino.

Steve McLaughlin has grabbed victory in the latest Australian GT Championship race.

Moto GP rider Johann Zarco ran out of petrol but still wanted to finish the race.

Motorsport columnist Bob McMurray is frustrated with F1's grid penalty system.

Motorsport columnist Bob McMurray looks at the rumours and gossip in Formula 1.

Motocross star Courtney Duncan is focused on the little things in her world title quest.

Dale Budge looks at what happens to Hayden Paddon after getting dropped for Rally Spain.

Kiwi Hayden Paddon has been dropped by Hyundai for Rally Spain.

Shane van Gisbergen is backing his talented young co-driver for the endurance events.

Brock Timperley will make his NZ Touring Car debut at Pukekohe in early November.

Bob McMurray and D'Arcy Waldegrave present the Radio Sport Driven Hour.

Brendon Hartley, Earl Bamber and teammate Timo Bernhard won in Mexico to extend their lead

Steven Richards speaks about why he loves GT racing ahead of the upcoming Hampton Downs 500 and Highlands 501.

Kiwi racing driver Steven Richards has his heart in GT Racing now.

Scott Dixon has moved to within three points of the Indycars title lead.

The Highlands 501 this November will be the last time the Australia GTs stop at Highlands.

Columnist Bob McMurray can see a classic fight developing between Vettel and Hamilton.

Shane van Gisbergen takes on the man that taught him everything he knows.

Supercars champion Shane van Gisbergen credits his dad Robert for his driving skills. The pair go head-to-head in this video challenge.

Scott McLaughlin balancing going for race wins with his championship chances.

David Holder will replace Greg Murphy in the Holden Barina at the final two NZRC rounds.

Kiwis Brendon Hartley and Earl Bamber take their WEC championship lead to Mexico.

Upset drivers, a lack of sponsorship and an uncompetitive year is plaguing Ganassi Racing.

Bob McMurray and D'Arcy Waldegrave present the Radio Sport Driven Hour.

Hayden Paddon feels let down with Rally New Zealand unlikely to be on the 2018 calendar.

Andrew Hawkeswood is leading the NZRC but knows he needs to make the most of it.

Nick Cassidy finished sixth at the Suzuka 1000 in the Super GT Championship.

Brendon Leitch has made a promising start to the US Formula 4 Championship.