Sono Motors Sion, unveiled the production design of the solar powered car

They are engines returns to talk about Sion, its solar-charging electric car, and presents production design of the car. In addition, the German company revealed “Solar bus kit“, a solution applicable to many current buses that helps to reduce fuel consumption and thus also pollutant emissions. But let’s go in order.


Sono Motors says he worked for further refine the car’s design, improvement of some aspects. Compared to previous prototypes, the company has changed the shape of the front and rear lights. It also redesigned the handle design, revised the rear end to improve aerodynamics and introduced a new tailgate. Behind it we also find a parking camera.

As for the interior, in addition to a new steering wheel, however, it has been introduced new materials and finishes. On the dashboard we find a panel for the digital instrumentation and a central touchscreen for the infotainment system itself. The most important feature of Sion is of course its own solar charging technology. Thanks to the panels integrated into the body, the car is able to adding an average of 112km of range per week (up to 245 km more under ideal conditions).

Remember that Sion can count on one 54 kWh battery (LFP) able to offer an estimated range of up to 305 km, in addition to the range enabled by the solar panels. The accumulator, in direct current, can recharge up to a maximum power of 75 kW. In alternating current, on the other hand, up to 11 kW.

Sion also offers two-way charging. Therefore, it is possible to supply external electrical devices (including car charging) up to a maximum power of 11 kW. The electric motor is capable of delivering 120 kW with a torque of 270 Nm. The car’s maximum speed is 140 km/h. For 0 to 100 km/h it takes about 9 seconds. The Sono Motors Sion measures 4,470mm long x 2,080mm wide (including mirrors) x 1,660mm high, with a wheelbase of 2,830mm. The luggage compartment has a capacity of 650 litres.

Sono Motors is currently building its validation car fleet in Munich near its headquarters, while also inaugurating the test program. In the coming months, these cars will undergo rigorous testing in both Europe and the United States. The program also includes the crash tests necessary to obtain homologation and on-track and on-road tests to improve driving dynamics.

From 1 July 2022, Sono Motors has over 19,000 reservations for Sion, with an average payout of €2,225 and a corresponding net sales volume of approx. €415 million, assuming all reservations are converted to sales. Sion will be proposed to one selling price of 25,126 euros plus taxes (29,900 euros in Germany). The production of the car is entrusted to Valmet Automotive. The goal is to produce 257,000 cars in 7 years. Production will start in the first half of 2023.


The Solar Bus Kit is a versatile and simple solution, optimized for the most common types of 12-meter buses on the European market, including for example the Mercedes Citaro. The German company will provide this product to help fleet managers reduce the fuel consumption of their vehicles.

More specifically, it is about a set of solar panels must be mounted on the roof of buses. The energy produced (1.4 kW peak) will be used to power some bus systems such as the air conditioning with renewable energy. In this way, the company estimates that it will be possible to save up to 1,500 liters of diesel and up to 4 tonnes of CO2 per bus per year. According to Sono Motors, operators are expected to recoup their investment in about 3-4 years, depending on days of operation and fuel prices.

More details about this product will be revealed in September during IAA Transportation. Finally, Sono Motors reminds that it is working with 19 companies, including MAN Truck & Bus and CHEREAU, to implement its solar technology on a variety of vehicles such as buses, trailers and trucks.

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