The first production Spéirling Pure chassis, painted pearl white, went upside down on McMurtry's build rig for Part 2 of the factory series. With the car inverted, prototype build technician Ollie Record walked through what is actually going into the tub: wiring looms, hydraulic lines, brake lines, bonded mount plates, and the first glimpse of the production car's onboard systems. The detail here is the kind that gets overlooked in manufacturer press releases. McMurtry publishes it because, for a company of their scale selling cars to private buyers, the relationship between factory and customer has to be transparent in a way that Porsche or McLaren does not need to worry about.
One of the more consequential engineering decisions in the Spéirling Pure is visible in this video: the downforce fans have been moved from the top of the car to the rear. The practical effect is a lower centre of gravity and better weight distribution, but the knock-on is significant. Moving the fans freed up the cavity previously used by the fan assembly, which now houses the inverter stack and the onboard charging system. The result is a car that generates enormous aerodynamic downforce and can also be charged from a standard domestic three-pin wall socket at up to 7 kW. That combination should not logically coexist, and yet the engineering decision that made it possible was driven by a desire to improve the car's handling balance. The charger is compatible with any EV charger, not just McMurtry-specific hardware.
The braking system on the Spéirling Pure uses the largest carbon ceramic discs that Rainbow manufactures, fitted identically at all four corners. This is only possible because the car generates sufficient aerodynamic downforce at speed to load the rear brakes effectively, making a conventional front-biased setup unnecessary. The team references 4G braking capability as a result. Strain gauges are fitted to the suspension linkages during the prototype build phase so engineers can validate their load calculations against real-world data before customer cars go out. An optional air conditioning compressor is available for customers running in hot climates. It cools both the cabin and the battery simultaneously and keeps the battery within its optimal temperature window during charging, which the team notes shortens turnaround times at the track. A second new addition is an onboard air compressor that replaces two external pressurised bottles previously required for the downforce-on-demand system, eliminating them from the customer's track kit entirely.
Bottom line: The Spéirling Pure is a car that sustains 4G braking, runs a fan-generated downforce system, and charges from a home socket. Each of those individually is interesting. The fact that they coexist in the same vehicle, built by hand in a Gloucestershire factory, is the actual story. Part 1 of the factory series covered the building and the inspection process. This is where the car starts to become a car.