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Is it wrong to say that we can use or omit "the" before "best" with an adverb without any change of meaning, but when we use "most" with an adverb, the meaning of the

best wishes to you best wishes to :Please convey my best wishes to him. I give my …

Your example already shows how to use "best" as an adverb. It is also a superlative, like "greatest", or "highest", so just as you would use it as an adjective to show that something …

The word "best" is an adjective, and adjectives do not take articles by themselves. Because the noun car is modified by the superlative adjective best, and because this makes …