Sources

Question 1:

https://wrench.com/blog/craziest-fun-facts-about-cars/

Question 2:

https://wrench.com/blog/craziest-fun-facts-about-cars/

Question 3:

https://wrench.com/blog/craziest-fun-facts-about-cars/

Question 4:

https://www.sunautoservice.com/about-us/shop-talk/25-interesting-car-facts-we-bet-you-didnt-know/

Question 5:

https://en.wikipedia.org/wiki/Frequency_illusion

Question 6:

https://www.holtsauto.com/redex/news/17-weird-and-wonderful-car-facts-you-need-in-your-life/