Battery Cars, conversions, electric cars, industry, Motoring News, vehicle technology

Small, but mighty: Electric conversions for many vehicles

LONDON, England – Customers in the UK can now order Swindon Powertrain’s High Power Density (HPD) 80kW ‘crate’ EV system that, its maker says, is smaller and lighter than the concept.

It’s punted as being ideal for classic-car conversions, sport, recreation, and light commercial applications with deliveries to start in August 2020 (more details on the company’s website).

The motors are suitable for OEMs, niche vehicle manufacturers, electric-car conversion companies, and home mechanic enthusiasts with prices (in the UK) starting at £6400+VAT for the motor, transmission, and differential with options for cooling, inverters, and limited-slip differentials also available.

SMALL, BUT MIGHTY: An example of the new motor from Swindon Powertrain. Image: Swindon Powertrain

The company told The Corner: ”The motors were devised as a response to the lack of compact-engineered EV systems for enthusiasts and smaller OEMs, Swindon Powertrain has refined and improved the HPD’s specification since it was announced six months ago.”

Each weighs only 50kg (including lubricants) and includes a brushless permanent magnet motor, transmission, open differential and a metre of cabling.

The package size is now only 441mm x 384mm x 228mm so, the company says, ”it has the highest power/volume unit for automotive applications on sale”.


”With multiple installation points and now with the ability to site the inverter and cooling packs separately, as well as being waterproof, the HPD offers more flexibility to fit in a wide range of vehicles.”

Enquiries to date have come from OEMs, low-volume manufacturers, classic-car enthusiasts, and owners of sport and ATV recreational vehicles.

MANY APPLICATIONS: The package size is now only 441mm x 384mm x 228mm with many bolt points so can be fitted to many types of vehicle. Image: Swindon Powertrain

Two inverter options, depending on battery voltage, are available though customers can also use their own. Depending on tyre size and top-speed requirement, buyers can decide between two no-cost gear ratio options using Swindon Powertrain’s online free-to-use calculator.

Swindon Powertrain registered more than 400 requests for more information in the weeks after announcing the HPD project in 2019 with pre-orders taken and a number of OEMs committing to further R&D projects, including one for a hybrid e-axle application.

READ MORE battery-car features on Carman’s Corner

MD Raphaël Caillé told The Corner in a media release: ”The reaction underlines our firm belief that enthusiast DIY mechanics and niche OEMs are woefully under-served by traditional suppliers or must resort to scavenging parts from scrapped electric cars.

“It’s now easier than ever for anyone to convert a car, truck – even a quad bike – to electric. It’s a credit to the skill and resourcefulness of the engineers and suppliers in the UK automotive and motorsport industry that deliveries will start in August 2020, only a month later than we originally stated.”

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