42 Aerodynamics research and development; fluid dynamics research and development; automotive research and development; design, development, product quality testing and product quality analysis of parts of motor vehicles; design, development, product quality testing and product quality analysis of aerodynamic systems for vehicles; design, development, product quality testing and product quality analysis of aerodynamic fairings, aerodynamic attachments, spoilers, air deflectors, wind deflectors for vehicles; air flow component product quality testing services; information, consultancy and advice related to all of the aforesaid services