Proposal for amendments to working document GRSG/2025/51, This proposal is aimed at allowing the certification for peculiar vehicle architectures (e.g.
high-performance vehicles), where generally the “R” point of the driver seat is not more than 450 mm from ground level. High-performance vehicles have peculiar characteristics. For instance, in order to reduce the aerodynamic drag the frontal surface is reduced. This leads to specific architectural solutions such as thinner and very tilted “A” pillar, smaller field of view, low volume cabin compartment, compared to mass-market vehicles. As a consequence, for high performance vehicles: