Joined Cases C-720/18 and C–721/18: Judgment of the Court (Fourth Chamber) of 22 October 2020 (requests for a preliminary ruling from the Oberlandesgericht Düsseldorf — Germany) — Ferrari SpA v DU (Reference for a preliminary ruling — Approximation of laws — Trade marks — Directive 2008/95/EC — Article 12(1) — Genuine use of trade mark — Burden of proof — Article 13 — Proof of use ‘in respect of some of the goods or services’ — Trade mark covering a car model the production of which has stopped — Use of the trade mark in respect of replacement parts as well as for services relating to that model — Use of the trade mark for used vehicles — Article 351 TFEU — Convention between the Federal Republic of Germany and the Swiss Confederation — Reciprocal protection of patents, designs and trade marks)