Vehicle with a manually-operated gearbox. If the vehicle is fitted with a two-speed, a three-speed or a four- speed gearbox, the second gear shall be used. If the vehicle has more than four speeds, the third gear shall be used. If, by following the above procedure, the engine speed developed exceeds its maximum permissible regime, the first higher gear which ensures that this regime is no longer exceeded up to the line BB' of the measurement area should be used instead of the second or third gear. Auxiliary step-up ratios ("overdrive") shall not be engaged. If the vehicle is fitted with a differential with two gear ratios, the ratio selected shall be that allowing the highest vehicle speed. The vehicle shall approach line AA' at a steady speed corresponding either, in terms of engine speed, to three-quarters of the rated engine speed or to three-quarters of the maximum engine speed permitted by the governor, or to 50 km/h, whichever is the lowest.
Vehicle with a manually-operated gearbox. 3.1.2.3.1. Approach speed The vehicle must approach the line AA' at a steady speed such that: either VA = 50 km/h; or VA corresponding to NA = 3/4 S and VA ≤ 50 km/h in the case of vehicles of category M1 and in the case of vehicles of categories other than M1, having an engine power not greater than 225 kW (ECE); or VA corresponding to NA = 1/2 S and VA ≤ 50 km/h in the case of vehicles not belonging to category M1 having an engine power greater than 225 kW (ECE); or, in the case of vehicles powered by an electric motor A 4 max or VA 50 km/h, whichever is the lower.
