Division MODEL C2 —PART 1: INCOMPLETE VEHICLES TYPE-APPROVED IN SMALL SERIES - Commission Implementing Regulation (EU) 2020/683 of 15 April 2020 implementing Regulation (EU) 2018/858 of the European Parliament and of the Council with regards to the administrative requirements for the approval and market surveillance of motor vehicles and their trailers, and of systems, components and separate technical units intended for such vehicles