UK-based electric motor manufacturer Helix has developed a bespoke dual-motor propulsion system for the McMurtry Spéirling, the single-seater electric fan hypercar that holds records at Goodwood and Laguna Seca. Customer deliveries of the production car are set to begin in 2026.
The system pairs two Helix SPX242-94 motors at the rear of the vehicle, delivering a combined 1,000 hp and 1,000 N-m of torque. Each motor produces 500 N-m and weighs just 33 kg. The compact packaging was tailored to the Spéirling’s tight single-seater layout, where it works alongside McMurtry’s fan-based downforce system. The motors mate with McMurtry’s own gearbox.
The Spéirling can accelerate from 0–60 mph in 1.5 seconds and cover a quarter mile in eight seconds. It has posted the fastest-ever lap of the Top Gear test track.
“The McMurtry Spéirling demonstrates one of the most effective applications of advanced electric motor technology,” said Simon Mead, automotive chief engineer at Helix. “We are proud to have been involved in its journey from an early stage, with Helix drive motor propulsion systems featuring throughout the evolution of this groundbreaking hypercar, from prototype to production.”
Helix has previously supplied propulsion systems for Formula E as well as hypercars including the Aston Martin Valkyrie, Lotus Evija and Czinger 21C.
Sources: Helix
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