When did the project start? In Autumn 2019, so two and half years from research and design concept to serial production. We check benchmarks and find inspiration from automotive, yacht, home and recreational vehicles and check with potential consumers for their wishes.  
Working with our designers, the project moves to the first gateway with a planned start of production agreed for May 2022. The journey begins!  
Supersonic has to pass a series of project gateways, where all details are assessed, up-to and through the industrialisation and production phases.  
What were the principal goals?  From the outset the goal is to develop a luxurious integrated motorhome on Mercedes-Benz, with recognizable Adria exterior visual design language and technically to a achieve masterpiece of integration and detail. For the interior, to create open living, outstanding comfort and a sense of well-being.
The ‘experience’ Supersonic delivers, whether driving or living in it whilst touring or on holiday is uppermost in all our decisions.  
Why Mercedes-Benz? Mercedes-Benz brings a premium experience and reputation, technically a first class, customer-centric approach. The brand is a synonym for luxurious elegant design and precision engineered performance. Cross company project team work was excellent with Adria values in tune with those of the Mercedes-Benz team.
What were the biggest challenges? The biggest steps forward are in technology development. For example, the Mercedes-Benz Sprinter front is longer than many alternatives, so we had to develop a precise inclination of the Supersonic windshield, dashboard, front grille and to achieve perfect integration of the engine, gearbox and cockpit for the best driving position and visibility.
Inside, many areas are the result of detailed development – the retractable seatbelt frame in the dinette; the pull-out expandable table; the spa bathroom design, the lighting system. Here we transfer innovative thinking into practical solutions.  
Who are the customers? Adria customers always look for something more and different from other brands. This is a given. They seek modern product design, with clean lines and flowing living spaces; comfort of course and easy practicality. Supersonic delivers a premium motorhome experience and differs from other integrated motorhomes in how it blends the best in automotive, yacht, recreational vehicle and home design.  
Describe the new Supersonic in one or two words.
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Project team (from left to right) Kolenc Klemen (Head of Predevelopment); Denis Car (Product Manager & Supersonic Project Leader); Matjaz Grm (Executive Director of Sales & Marketing); Andrej Drnovsek (Prototype Dept.) Sitting: Anton Kastrevc (Executive Director, Research & Development); Vid Stiglic (Predevelopment Design); Matjaz Cop (Research & Development); Katja Jenic (Product Management-Design). Not pictured: Bojan Vraničar (Pre-development); Uroš Dvornik (Pre-development); Boštjan Kramar (Technology); Jure Žabkar (Purchasing).