The Working Party on Noise and Tyres (Groupe Rapporteur Bruit et Pneumatiques - GRBP) is a subsidiary body of the World Forum for Harmonization of Vehicle Regulations (WP.29) that prepares regulatory proposals on vehicle noise and tyres for consideration and adoption by WP.29. To develop those requirements, GRBP conducts research and analysis.
SiL has just acquired a pickup, it is massive, one of those with a full cab (with ISOFIX, natch).In his defence, he does run a scaffolding company so is one of the few who can justify it.