Opinion of the European Economic and Social Committee on ‘Proposal for a Regulation of the European Parliament and of the Council setting CO2 emission performance standards for new heavy-duty vehicles’ (COM(2018) 284 final — 2018/0143 (COD)) and on ‘Proposal for a Decision of the European Parliament and of the Council amending Council Directive 96/53/EC as regards the time limit for the implementation of the special rules regarding maximum length in case of cabs delivering improved aerodynamic performance, energy efficiency and safety performance’ (COM(2018) 275 final — 2018/0130 (COD))