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Model

McMurtry Spéirling

McMurtry Spéirling is a compact, single-seat electric track car built around fan-assisted downforce. FKV separates its 2021-2023 prototype record from the 2024-on PURE production generation, making the change in production context visible without losing the shared technical specification.
Production2021-
CategoryElectric track car
Status
Track-only
Model
McMurtry Spéirling
Manufacturer

Key specifications

Body style
Track car
Engine
Electric · 2 electric motors
Power
Approximately 745.7 kW
Drivetrain
Rear-wheel drive
Transmission
Single-speed

Differences between variants

Differences between variants
Specification McMurtry Spéirling PrototypeMcMurtry Spéirling PURE
Production period 2021-20232024-

Generations and variants

Generation

McMurtry Spéirling - prototype

2021-2023 Prototype
Variant

McMurtry Spéirling Prototype

2021-2023
Body style
Track car
Engine
Electric · 2 electric motors
Power
Approximately 745.7 kW
Drivetrain
Rear-wheel drive
Transmission
Single-speed
Generation

McMurtry Spéirling - PURE

2024- PURE
Variant

McMurtry Spéirling PURE

2024-
Body style
Track car
Engine
Electric · 2 electric motors
Power
Approximately 745.7 kW
Drivetrain
Rear-wheel drive
Transmission
Single-speed

Facts

The production Spéirling PURE, revealed in final form in 2026, is rated at 1,000 bhp delivered to the rear wheels.

Engineering

The record-setting Spéirling demonstrator used two electric motors driving the rear axle.

Engineering

The Goodwood record prototype weighed under 1,000 kg and used rear-wheel drive.

Engineering

McMurtry quotes maximum downforce of up to 2,000 kg for development and production versions of the Spéirling.

Engineering

Because its downforce is fan-generated, the Spéirling's system works from zero road speed and does not depend solely on airflow over the body.

Engineering

The Spéirling's Downforce-on-Demand system uses two high-speed fans to extract air from beneath a sealed floor.

Engineering

The Spéirling's 2022 Goodwood time was 0.82 seconds faster than the Volkswagen ID.R record set in 2019.

Records

In 2022 Max Chilton completed the Goodwood Festival of Speed hillclimb in 39.08 seconds, setting the outright hillclimb record at the time.

Records

McMurtry plans a limited production run of 100 Spéirling PURE cars, with customer deliveries beginning in 2026.

Production

McMurtry revealed the Spéirling publicly at the 2021 Goodwood Festival of Speed as an electric demonstrator with fan-generated active downforce.

History