However, it is important to note that the regulations and the testing standards may evolve over that time. It is possible that there may have been some updates or some developments in testing procedures since my last update. I recommend that you consult the latest guidelines or the last regulations of the relevant authorities or organizations for the latest information on WLTC and any specific test classes related to the power-weight ratio for all vehicles.1
References
1Minzatu C, Nișulescu V, Toma MF, Rențea C, Bancă G. Research concerning the autonomy of the electric vehicles, simulated and measured, in the case of driving at the low and the medium speed, specific to the WLTC test. IOP Conference Series: Materials Science and Engineering. 1303(1):012003. doi:10.1088/1757-899X/1303/1/012003