If you are a fan of the Goodwood Festival of Speed then you will have inevitably seen the record breaking McMurty Spéirling Hyper car. McMurtry is a UK-based electric hypercar manufacturer founded in 2016 by engineering pioneer Sir David McMurtry. Their vision is to build vehicles focused purely on driving exhilaration. Not just for professional racers, but for anyone passionate about pushing limits.
The elite team created the record-breaking Spéirling — a revolutionary fan car delivering 3G cornering via 2000kg of confidence-inspiring downforce available from 0mph. Lightweight, agile, and shockingly quick in corners, it puts pro-level performance in the hands of any passionate driver.
Helix, the UK manufacturer of the world’s most power-dense electric motors and inverters, has partnered with electric hypercar brand McMurtry Automotive. Helix has developed a bespoke drive motor system for the McMurtry Spéirling Pure Electric Fan Hypercar, to mate with McMurtry’s gearbox.
Featuring two Helix SPX242-94 motors at the rear, Spéirling can deliver up to 1,000hp. Helix’s bespoke propulsion system works alongside McMurtry’s proprietary Downforce-on-Demand™ fan system to deliver ground-breaking performance.
Capable of accelerating from 0-60mph in 1.5 seconds, and covering a quarter of a mile in 8 seconds, Spéirling has already achieved records at Goodwood Festival of Speed and Laguna Seca Hill climb, along with setting the fastest-ever lap of the Top Gear test track.
Developed from Helix’s scalable core technology range, the SPX242-94 is one of the most powerful motors the company has ever produced. Each unit provides 500Nm of torque, all in an ultra-lightweight package of 33kg.
The SPX242-94’s packaging unlocks all-new automotive design possibilities, allowing for the most effective use of space within the Spéirling‘s compact, single-seater configuration.
Building on the success of the Spéirling programme, a new division called McMurtry Technology now offers OEMs the opportunity to access proven technologies for their own programmes, including Fan Downforce Systems to improve both performance and safety, High Performance Batteries using tailored designs or modules already developed for the Spéirling and E-Axles to deliver proven powertrain performance.
With roots in motorsport, Helix’s motors, inverters, and electric propulsion units are an established staple in Formula E and other racing series. Helix’s technology also powers record-breaking hypercars such as the Aston Martin Valkyrie, Lotus Evija & Czinger 21C. In recent years, the power density of Helix’s systems has seen the company also play a role in the electrification journey of industries such as aerospace, defence, and marine: with current and past partners including vertical take-off and landing vehicles, space launch providers, racing boats and yachts, and defence platforms spanning land, sea, and air.