Resurgent Birmingham car-maker MG is aiming to power to success with the addition of an electric vehicle to its range

The company has unveiled a concept vehicle which could pave the way for plans to produce an eco-friendly electric car in Longbridge.

The 'Dynamo' design was put on display for a fortnight at the London headquarters of the Society of Motor Manufacturers and Traders (SMMT) and will next be shown at a special MG anniversary event taking place in June.

Although MG has stressed the Dynamo is purely a concept vehicle, it could herald the future direction the firm may take as it continues its expansion.

Described by MG as a "display of future technology", the firm said the Dynamo was designed to test the waters.

The car-maker added: "The Dynamo concept EV has been developed in order to fully understand European market demand for a small, electric MG."

The latest unveiling comes in the wake of an unprecedented sales surge for MG as its new MG3 supermini helped spur it on to a record sixfold sales growth in the first quarter of this year.

UK sales figures released by the SMMT revealed a sales surge of 574 per cent for the firm and confirmed it as the fastest growing manufacturer in the UK - in both March and the first quarter.

Between January and March, MG sold 546 cars, compared to 81 for the same period in 2013 - an increase of 574 per cent compared to the first quarter of 2013.

Overall, the figures mean MG has already sold more cars in the UK this year than it did in the whole of 2013.

MG pointed to a number of factors behind its performance, including the arrival of the MG3, the introduction of a diesel engine in the MG6, a rapidly expanding dealer network and attractive finance offers.

The Dynamo is the latest concept vehicle to be created at parent company SAIC Motor's European Design and Technical Centre (SMTC), located with MG Motor UK, at the Longbridge.

The centre also produced the MG Zero concept vehicle on which the MG3 was based, the production vehicle coming into being just over a year after the concept was unveiled.

Although many concept vehicles never make it into production, the Dynamo is a fully running car, meaning a considerable amount of work has gone into its development.

The stage of development it has reached also means it could feasibly be put into production within a relatively short time frame.

The Dynamo will next be displayed on June 21 at the MG90 celebration event taking place at Silverstone.

The two-day event, organised jointly by the car-maker and the owners' clubs, is being held to mark MG brand's 90th anniversary.

The event is designed to be the highpoint of the marque's 90th birthday celebrations and will feature a range of vehicles, spanning the past, present and future.

MG said: "The major event will feature historic MG vehicles alongside current production models and a preview of technology that will take the marque forward into the next 90 years.

"MG90 is set to be not only a great family day out but also a highlight of any enthusiast's diary, celebrating all things MG past, present and prototype."