How do the other characters respond to piggy in chapter 11

What kind of word is the pronoun in bold letters? the car will be yours when you pay your last car payment.

What is implied in this sentence from mark twain's "the £1,000,000 bank-note"? i was puzzled, and wanted to discuss the matter a little further, but they didn't; so i took my leave, feeling hurt and insulted to be made the butt of what was apparently some kind of a practical joke, and yet obliged to put up with it, not being in circumstances to resent affronts from rich and strong folk.

Pronoun clearly shows what is being referred to at specific person place or thing