Is it possible for the formaldehyde levels inside the car to exceed the standard by several times even after more than two years? How can this be resolved?

The taillights of the GTR are truly impressive and exude a powerful presence. I fell in love at first sight. They seem even more imposing than those of a Ferrari.

When driving a 206 with a 1.6 automatic transmission, whether on the highway or at low speeds, the engine noise becomes very loud once the RPM exceeds 2800. There's a buzzing sound inside the cabin that is even louder than the wind noise—it's really loud! When the car is idling after warming up, there's a noticeable vibration if you hold the steering wheel or sit in the seat. What could be causing this? Looking for guidance from experts!

Is it possible to get a 2012 Volkswagen Scirocco 2.0 with no more than 80,000 kilometers, no accidents, no fire damage, no water damage, and no tampering for 60,000?

I feel like the interior of this Grand Highlander is even more impressive and stylish than that of the Lexus TX!

Have you ever experienced the charging process suddenly stopping halfway? I've encountered this several times recently. Sometimes it stops just after charging a few kilowatt-hours, other times it stops at 80% or even at 90%... I'm not sure what's causing it.

Has anyone experienced repeated jerking at a certain RPM (mine is at 1500-1600)? Lightly pressing the accelerator to maintain this RPM causes repeated jerking, but it stops if I accelerate more or release the pedal. This issue has randomly appeared several times and then mysteriously resolved itself.

The insurance for this car is even more expensive than for mine 😂😂

Is the lumbar support of the standard 14-way seats on the 992.1 unable to fully retract into the backrest? Even when adjusted all the way in, it still sticks out and presses against the lower back. It's really uncomfortable over time.

Is it possible for the formaldehyde levels inside the car to exceed the standard by several times even after more than two years? How can this be resolved?

In March 2021, I had a 2020 model of the Leading Version. A few days ago, while driving on the highway with the AC on, everything was fine for about an hour. Then, it started getting hotter inside the car. When I checked, the air coming out of the AC vent was disappointingly weak. Usually, setting it to level 1 is more than enough to keep things cool, and sometimes I even have to turn it off for a bit. But this time, even when I turned it up to levels 3 or 4, the cold air was still too weak. Finally, I set it to the maximum, which was barely acceptable. At the same time, the noise from the electric fan became increasingly louder. Later, when I turned it back to levels 1 or 2, there was no airflow at all. Has anyone else experienced a similar issue? How should I resolve it? I would appreciate any valuable suggestions. Thank you.