No approval is required from the buyer of a retrofitted vehicle. The conversion kits themselves are subject to prior approval. The experts of GCK Mobility lead this process as developer and manufacturer.
GCK Mobility works in collaboration with several specialized manufacturers (Iveco, Renault) as well as with its sister companies (GCK Battery, GCK Performance, Solution F) to develop kits for a wide range of models.
A retrofitted vehicle is covered by a warranty on all components of its propulsion chain (all new parts are covered). Each retrofitted vehicle also receives a conversion plate indicating the name of the kit manufacturer, the VIN number of the vehicle, the prototype approval number, and the reason “conversion of the motorization to electric”.
It is important to note that each vehicle type must be approved


In February 2024, GCK Mobility made history by obtaining a road homologation certificate for a hydrogen retrofitted coach. Following validation of all the UTAC and CNRV homologation tests, the IVECO Crossway coach is now authorised to travel on the roads.
This is a world first, making it possible to launch series production of coaches retrofitted with a hydrogen fuel cell.
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