This is a card I stumbled across, from a promotion in 2014. Carousel of Dreams ran from 13/06/14 to 12/07/14 which saw five cars given away across five Saturdays.
The promotion was spread through the whole business. The casino had various circus performances during Carousel of Dreams that featured acrobats, jugglers and dancers. The bar had exclusive cocktails made up just for the promotion (All the videos promoting them seem to be down, unfortunately), and we had multiple smaller draws and competitions following the same theme.
At the time, the lowest Rewards member level was Ruby, and since that card was red as well, it got incorporated into the promotion. New members at the time got this card as a limited exclusive collectible.