Could be exclusive to exports.
Automotive blog, Anything on Wheels, has uploaded new spyshots of the 4-door Mahindra e2o EV, which was spotted testing in Bengaluru.
Reports suggest that the 4-door Mahindra e2o would be exclusive to export markets such as the U.K, where it is tipped to launch by June 2016. The 2-door e20 sold in India is powered by a 19 kW (25.47 bhp) motor that produces 53.9 Nm of torque giving it a range of 120 km and a top speed of 81 km/h. The four-door variant is expected to get a more powerful electric powertrain giving it a higher range and top speed, while also having Mahindra’s Quick2Charge technology. The four-door would get additional safety features to comply with European requirements.
Spyshots depict an exterior that is largely similar to the 2-door model, save for the extended length required to accommodate the rear doors. It's likely to carryover most of the features from its smaller brother, which include power steering, music system, reverse camera, and electric ORVMs.
[Source: Anything on Wheels]