^^^ Actually, Pippa's sister Kate, the Duchess of Cambridge, DID NOT arrive at her wedding in a horse-drawn carriage. Kate arrived in a limousine, and then she left the church in a horse-drawn carriage. It was Kate's choice. She didn't want to arrive in a carriage, but both Kate and William agreed to leave in a carriage for the crowds and the pomp and circumstance.
Royal watchers in the media should get the facts straight.
Why does it matter to you so much @royal_rob about these prospective details of Pippa's wedding and whether or not she arrives in a horse-drawn carriage? It's her day, as well as her family's money to spend as they please, not yours. The fact there is such public interest is purely because of who Kate is married to, and who Prince Harry is bringing. The public interest and subsequent need for ever more heightened security is not Pippa's fault. I'm sure there are plenty of ladies around the world who have put together even more extravagant weddings than Pippa's. Again, anyone has the right to put together whatever elaborate or fancy wedding they please, if they can pay for it.