The Countryman E utilises the brand's familiar 1.5-litre turbocharged three-cylinder petrol engine. The 100kW/220Nm motor drives the front wheels via a six-speed automatic transmission.
Also under the bonnet is a 15kW/150Nm electric generator that helps to restart the petrol engine smoothly, recharges the batteries, and provides a power boost for short periods of time.
Driving the rear wheels through a two-speed transmission is a more powerful 65kW/165Nm electric motor. Both electric motors are connected to a 7.7kWh lithium-ion battery pack located at the rear of the vehicle.
The Countryman E will have a tailpipe emissions-free range of around 38 kilometres on a fully-charged battery. Top speed will be limited to 80km/h in EV mode.
According to the website, the Countryman E will sprint from 0-100km/h time of 6.5 seconds, while maintaining an EU fuel economy rating of around 2.0L/100km.
As our spy photos from earlier this year show, the new Countryman will be a bigger beast than today's model. Based on the UKL platform, the second-generation Countryman is expected to grow from 4.1 metres long to around 4.4m in length.
If Motoringfile and its sources are on the money, the Countryman E will debut alongside its conventionally-powered sibling in September this year. Sales, however, won't begin until 2017.