SEV Sono Group NV

A new electric town car will feature the very latest in electronic motor control technology from Sevcon, Inc. (Nasdaq:SEV). Production started in June 2011 on a planned initial 10,000 vehicles.

The three-seat mia, which has been designed by former Volkswagen chief Murat Günak, is an exciting new development in urban EV vehicle technology and is one of the first series models on the market.

Under development since 2007, the mia is powered by a Leroy Somer asynchronous motor which will be controlled by Sevcon's state-of-the-art Gen4 size 4 80V 350A motor control.

mia has turned to Sevcon, which is a world leader in motor control technology and a long established supplier to the automotive industry, as its motor controls provide the smallest controllers in the industry relative to power delivery.

The mia represents the very latest in compact, zero-emission urban vehicles, able to cover up to a distance of 130 km and fully chargeable within 3 hours.

The size 4 – one of four controllers in the Gen4 series ranging from size 2 to 8 – has been chosen to deliver smooth power transmission, improved efficiency and an extended range capability due to its ability to be closely characterized with the specific requirements of the mia.

The mia is one of a growing range of on-road electric vehicles using Gen4 controllers. Peugeot's e-vivacity scooter, Vmoto's E-max bike and Brammo's Enertia street bike are all taking advantage of its performance benefits.

The mia will be manufactured in Cerizay, France, and has a scheduled annual production run of 12,000 vehicles a year.

It boasts a modern lightweight style and an innovative design concept that includes a central driver's seat. The design provides the driver with a perfect view of the city. It also has sliding doors on both sides and an extremely spacious passenger compartment.

Sales of the mia will initially focus on public and private fleet operators with sales to private customers starting in 2012. The basic version of the three-seat mia will cost €19,500 including VAT and not considering any public incentives.

About Sevcon, Inc.

Sevcon is a world leader in the design and manufacture of microprocessor controls for zero emission electric vehicles. The controls are used to vary the speed and movement of vehicles, to integrate specialized functions and to optimize the energy consumption of the vehicle's power source. The company supplies customers throughout the world from its operations in the UK, the USA, France and the Asia Pacific region and through an international dealer network. Sevcon's customers include manufacturers of on- and off-road vehicles including cars, trucks, buses, motorcycles, fork lift trucks, aerial lifts, mining vehicles, airport tractors, sweepers and other electrically powered vehicles. For more information about Sevcon, visit www.sevcon.com.

About mia

The mia is produced in Cerizay, France, by mia electric, which took over the electric cars divisions of the renowned French vehicle manufacturer Heuliez in July 2010. Heuliez has been designing and producing pure drive electric cars since 1984 and has manufactured over 6,500 electric cars including Citroen AX Electric, Peugeot 106 Electric and Citroen Saxo Electric. Once production of the mia begins, the Cerizay plant will employ 240 staff.

Forward‐Looking Statements

Forward‐looking statements in this release about Sevcon's relationship with mia electric are subject to risks and uncertainties that could cause actual results to differ materially from those we anticipate. In particular: global demand for electric vehicles may not grow as much as we expect; our customers' products may not be as successful as those of other entrants in the electric vehicle market who are supplied by our competitors; continuing economic instability may cause customers to delay, decrease or cancel purchases of our products; we are dependent on a few key suppliers and subcontractors for most components, sub‐assemblies and finished products, and we may not be able to establish alternative sources of supply in time if supplies are interrupted; we have a small number of key customers whose loss would adversely affect our results; and our worldwide operations are subject to the risks of international trade, including without limitation regional economic downturns, exchange rate fluctuations, and changing laws, regulatory practices and tariffs.

CONTACT: David Calusdian
         Sharon Merrill Associates
         1 (617) 542 5300
         dcalusdian@InvestorRelations.com
         
         Matt Boyle
         President and CEO
         1 (508) 281 5503
         matt.boyle@Sevcon.com