Proposal to clarify the determination of net power in cases where an additional fan or other method is used to maintain the temperature of the engine coolant within the prescribed range.

Proposal to avoid a redundant correction of the measured engine power of supercharged and turbocharged engines fitted with a self-correcting system for ambient conditions such as temperature and altitude. The current correction factor may yield inaccurate results for such configurations.

Proposal for a set of uniform terms and definitions to promote consistency across powertrain-related regulations.

Proposal to align the tyre-selection criteria in the CO2 emissions/fuel consumption tests under UN R101 with those for pollutant emissions (UN R83).

Proposal to correct the unit of the road load coefficient b used in the formula for the calculation of the resistance to progress force.