Photos: Production-spec McMurtry Spéirling PURE gets 100kWh battery upgrade, 95% new parts
interestingengineering.com Aug 8, 2026

Photos: Production-spec McMurtry Spéirling PURE gets 100kWh battery upgrade, 95% new parts

AI-summarised brief · reviewed before publication

The McMurtry Spéirling PURE, a production‑spec hypercar, will be unveiled on 14 August at The Quail during Monterey Car Week and driven on the Laguna Seca track the following day for the Monterey Motorsports Reunion. Co‑founder Thomas Yates will attend both events. The PURE version incorporates 95 percent new components versus earlier prototypes, reflecting input from early depositors. Its battery capacity has been raised from 60 kWh to 100 kWh using Molicel P50B cells, extending track run time, while a modular design allows future upgrades. New Helix drive motors, an upgraded gearbox and 200 kW regenerative braking boost performance. The cabin now offers more elbow and leg room, a wider door opening, and a boot for a helmet and HANS device. Power‑train cooling has been moved to the front, the wheelbase lengthened to 2.2 m, and a carbon‑fiber monocoque meets global motorsport safety standards.

💡 Why It Matters

  • · The upgrade transforms a prototype into a road‑legal, track‑ready hypercar, giving owners genuine circuit access without extensive modifications.