This year's car emperor motivation test can be the so-called hot spot, including the Great Wall, Geely, Wenjie, etc., car companies have voiced their doubts about this test, Geely Automobile Group Vice President Yang Xueliang is even more blunt: this winter test is unscientific, not rigorous, misleading consumers. 
The test environment is still very harsh, with an outdoor temperature of -40, which is a very severe test for new energy vehicles. 
Let's take a look at the standard of this test, except for the co-pilot, the other seats are increased by 60 kg of counterweight, left to stand overnight after being fully charged, and prepare for the same time before departure, the test vehicle sets off in a unified manner, the driving route and vehicle speed are consistent, and the most economical driving mode is used in the vehicle test, until the engine or range extender intervenes, and the pure electric cruising mileage is tested. 
Just watch it for fun, what I'm most curious about is actually which manufacturers people went.
For the battery life test, we must first have a basic understanding that the most important factor that determines the battery life is the difference in battery size, thermal management and energy consumption, but under the same conditions, the difference will not be too big, and the measured data must be too different. Let's use the big difference between this live broadcast M7 and Look Up U8 to illustrate.
It seems to be more than two hours of preparation before the live broadcast, so a lot of electricity was consumed before the test began, and this power consumption was mainly consumed by air conditioning and heating.
The M7 is a 10kWh PTC air conditioner, which requires 10 kWh of electricity for one hour of full heating, and almost 50% better power for two hours.
Looking up U8 is a heat pump air conditioner, this is more power-saving, looking up U8 shares 10 kilowatt-hours of electricity, using less than half of the M7.
PTC air conditioner is equivalent to a small sun, that is, the heating resistance heats up, and the heat is also very fast;The essence of heat pump air conditioning is heat exchange, which requires refrigerant, but it is not good to make it under extremely cold conditions (there are differences in refrigerant), for example, Tesla's heat pump air conditioner has no effect at minus 20 degrees, and I don't know how many degrees of failure I look up to U8, and the people sitting in it during the live broadcast also said that it was very cold.
To put it simply, the heating link is to ask the worldM7 has been heating to create heat, the longer the time, the more electricity is consumed, looking up to the U8 air conditioner is also working, although it saves electricity, but the heating effect can be ignored at this temperature, which also causes a huge difference in power consumption. But if you're in a place like this, which car do you buy?I definitely choose PTC air conditioner, what is the point of power consumption when the air conditioner is not hot.
In fact, such a comparison is not meaningful, and it may be closer to the ideal than the questioning world, but why is there no ideal this time?
Again, it's good for everyone to have fun, I bought the extended range hybrid in the north because it can burn oil, and it is a bit wrong to only measure the EV range itself at a temperature of minus thirty or forty degrees.