Gobstopper III is a 950PS hillclimb monster

07th September 2022
Ethan Jupp

Roger Clark Motorsport’s Gobstopper series of hillclimb monsters is close to our hearts here at Goodwood. It was a golden few years at the Festival of Speed presented by Mastercard when the incredible Impreza, nicknamed Gobstopper II, battled historic sportscars and supercars on our Hill. Well now, its long-awaited successor is ready to run. Everyone, meet Gobstopper III.


To appearances, the top side of a Subaru BRZ has been epoxy bonded onto the floor of a Group C car, with rear venturis to make an Aston Martin Valkyrie feel self-conscious. There’s also a rear wing to make the new Porsche 911 GT3 RS feel like a Touring and a front splitter to make a McLaren Senna GTR conscious of its jawline. Truthfully, there’s very little BRZ actually in there, with a space frame chassis underpinning the fully carbon fibre body.

Video: Onboard the Gobstopper II’s FOS 2015 winning run!

It’s all-wheel-drive by comparison to the road car’s rear-only setup and for good reason, given it’s packing 950PS (699kW) from its nitrous-infused monster EJ20 2.0-litre flat-four-cylinder engine. Gobstopper III is getting a proper run out at Mallory Park’s Quick60 Challenge on 17th September. How much do you want to see this monster unleashed at the Festival of Speed presented by Mastercard?

  • Gobstopper

  • Gobstopper III

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    Video: This is Gobstopper 3 and it hates lap records

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    Festival of Speed

    Video: Onboard the Gobstopper II’s FOS 2015 winning run!

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    Video: Backwards drag racing is the best form of chaos