Can someone explain why there's only one millimeter wave radar, while the 001 has three?

Is the new C40 the one that got five stars in the crash test last time? I'm new to Volvo and not very familiar with it. Can someone explain?

How do you replace the air conditioning filter? Can someone explain it?

Why isn't the GA8 coming out with a new model? I actually quite like this car. Can someone who understands explain this?

I ordered a Geely Emgrand, but why are all the production dates showing as 2022? Can someone explain this?

What could be the reason for the windshield wipers not spraying water? Can someone with experience explain this?

Has anyone experienced issues with the radar not working? I recently noticed that when I turn on the radar, it beeps three times, and then there are no distance alerts. Is it broken?

I have a 2017 New Santana, and occasionally it won't start. If I wait a while or press the gas pedal, it starts. Can someone explain what's going on?

Big Brother 001 has been refining its three swords for a year, so why is the X still on a 400V platform? Will it be upgraded in the future?

I'm considering replacing the front bumper with a short ARB one, but I'm not sure if it can accommodate radar holes. The JL bumper has 6 radar sensors. Has anyone here modified theirs and can offer some advice? Thanks!

Can someone explain why there's only one millimeter wave radar, while the 001 has three?