continuation of the previous answer:
In Ch.59. after Mrs. Bennet recovers from the shock of hearing that Elizabeth is engaged to Darcy she is ecstatic and exclaims: "Oh, my sweetest Lizzy! how rich and how great you will be! What pin-money, what jewels, what carriages you will have! Jane is nothing to it-nothing at all."
Contrast this with Ch.7 where the entire Bennet family perhaps had only a carriage or a coach driven that too by horses which were used in the farm.
"Pride and Prejudice" deals with matters concerning the important thematic connection between money,wealth and marriage. Although, there are no overt symbols there are subtle indicators which emphasise the financial status of a character.
One such indicator is the mode of transport which the character uses.
The chaise and four in which Bingley visits Netherfield for the first time, clearly emphasises his rich financial status (Ch.1.) Similarly,in Ch.56 Lady Catherine a very rich lady visits the Bennets in a chaise and four. Only very rich people could afford to own and maintain four horses as a means of private transport.
In Ch.7 the conversation after Jane reads aloud the note from Catherine Bingley revals to us that the Bennets have a carriage and a coach (a covered carriage) but not separate horses for them. Similarly, the Hursts although they have a chaise of their own do not have separate horses for it, unlike Bingley who owns a chaise alongwith the horses for it.
In Ch.53. on his second visit to Hertfordshire, Bingley visits the Bennets after entering the paddock-the place where horses are kept-and then "rides towards the house." Although, Elizabeth spent six weeks at Hunsford there is no reference to Collins owning a carriage leave alone having a paddock.
Darcy's very rich superior status is emphasised in Ch.44. He and his sister use a curricle-a two wheeled carriage pulled by two horses side by side-to visit Elizabeth at the inn.