[Grammar] Treat your car like the friend it is

[Man_From_India]

I have found this sentence in one of the articles on a website. Can you please tell me the meaning of this sentence. Actually the last two word "it is" is bothering me. I guess this sentence has the same meaning as "Treat your car as your friend"?
What extra meaning "it is" is adding?
I also want to know it's usage and grammar that is not to make mistakes while writing my own sentences using this construction.


Thanking you in advance.

 

[Tdol]

It's stronger than your version- your version describes the way to treat it, but does not say that the car is your friend. The original does.

 

[Man_From_India]

It's stronger than your version- your version describes the way to treat it, but does not say that the car is your friend. The original does.

Thanks for this nice explanation.
But I did find some examples like this as well:
"Treat your children like the children they are"

I want to know more of this construction.

 

[Barb_D]

Your car is your friend. Treat it as such. (Treat it as you would treat a friend.)
Your children are children. Treat them as children should be treated.

 

[sergeyrais]

not a teacher

I guess the sentence "​

Treat your children like the children they are" has an emphatic inversion in its second part to emphasize the emotional context of the uttering on the one hand and on the other hand to meet the requirement of the preposition like which is normally followed by a noun (not a clause).
I wonder if my explanation is right.
Are there any other emphatic constructions similar to that?