Sion – Endless Mobility

The Sion is the first mass-produced electric car that can charge its battery using solar power. All for €25,500.


The design of the Sion adheres to the principle of form follows function. A key design feature is the seamless integration of the solar cells into the body.


The distinguishing characteristic of the exterior are the solar cells, whose full-surface integration completely redefines the body. The hood, fenders, sides, roof and rear of the vehicle carry solar cells that visually blend into the surface. The system is protected by a robust, scratch-resistant polymer.


Simply put, the Sion’s interior has been designed to be as clear and straightforward as possible. The cabin features our natural air-filter system, breSono, alongside the vehicle’s infotainment system that comes with a 10-inch display.


The dashboard’s cleanly structured and subtle design makes it easy for you to check up on all important information at once. There’s the speed and current charge level, and you also see a continuous display of how many extra kilometers your viSono system is generating, before they’re included in the total range display after 24 hours.


The Sion is the answer to all that is required of an electric car that needs to stand the test of everyday use: a range of 250 kilometers (255 kilometers under the WLTP standard), fast charging, a carefully designed interior, and an optional tow bar. The large trunk offers enough space to easily hold all your shopping. Over the following pages, we’ll show you what makes the Sion genuinely unique.


Our viSono system is based on the idea of energy generation by the sun. Thanks to the solar cells fully integrated into the body, the Sion can easily charge its battery during the day through the power of the sun. In Germany, for example, up to 34 kilometres of additional range per day can be generated purely by solar energy - in a simple way and completely free of charge. The battery has a range of 250 kilometers (255 km - WLTP standard) and a capacity of 35 kWh. We use highly efficient, monocrystalline silicon cells for the solar cells. A total of 248 cells can generate a peak value of 1272 watts with an efficiency of 21 %. The modules are seamlessly integrated into the body.


Thanks to the bidirectional charging technology, the Sion can draw and store energy and, moreover, share it too. A regular household electrical plug (SchuKo) can be used to power all common electronic devices up to 3.7 kW. The Sion can deliver even more power when using a Type 2 plug. You will then be able to power other electric cars and heavy duty devices with up to 11 kW. Combined with viSono, the Sion can be your power plant on wheels.


Breathe! We’ve integrated a special moss into the dashboard for the breSono air-filtration system. It uses electrostatic gravitation to filter up to 20 percent of particulate matter out of the air, while providing positive effects for the temperature and humidity inside the Sion. You don’t even have to lift a finger. The moss takes care of itself.


The lithium ion battery has a capacity of 35 kWh, features water cooling, and has a range of 250 kilometers (255 kilometers under the WLTP standard). Our plan is for you to be able to rent or lease the battery or buy it outright.

Air Conditioning
The Sion’s standard equipment will feature air conditioning. Air conditioning does more than simply cool you down during summer. It also removes moisture from the air, helping demist your windshield in cold and wet weather, hence improving driving visibility.

Trailer Hitch
With a towing capacity of approximately 750 kg, it’s a breeze to tow smaller trailers. The 120 kW motor and single-speed transmission guarantee a good drive, even when the surface is uneven.

Safety is very important to us. Therefore, the Sion comes with ABS brakes, alarm equipment, passenger and driver airbags as well as ESC.

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We’ve developed a maintenance system that keeps costs as low as possible. By publishing our workshop handbook, we will make it possible to establish an extensive service network while keeping costs low for you.


reSono comes from the word “repair” and stands for the Sion’s intelligently designed maintenance system – a system that keeps repair and maintenance costs affordable. You can order almost any Sion part online, and our workshop handbook is available for anyone to view, whether they’re a private individual or a business owner.


An instructional video and catalog to back it up means that you’ll generally be able to install replacement parts in the car yourself. Of course you can also take your Sion to a mechanic to have parts replaced or repairs carried out. Because our workshop handbook is freely accessible, we enable a network of workshops to offer you repairs and service at affordable prices.

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