Comma question: charge down the street(, )towards the bridge

i need some one to tell me if it’s correct.

—jonny’s race car, the snail, leads the charge down the street(,)towards the bridge.

would i put a comma there.

is “towards the bridge” a nonessential clause ?

how would i make that sentense grammarticaly correct.

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Towards the bridge is not a clause; it is a prepositional phrase acting as an adverb. The comma is optional, depending on how restrictive that information is considered by the writer; however, I would omit it, because it slows down the action of the sentence-- which is quite rapid, considering that it is about a race!
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I also would omit the comma but I would put an and in that same spot if the bridge is not at the end of the street but is the final destination.

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Oh, and capitalize Jonny and The Snail (which I presume is the race car’s name).
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