World's Largest Pizza

Yes, I'm just that hungry that I'm wondering about the world's largest pizza. On Gilmore Girls Rory decides to build the world's largest pizza for Lorelai's birthday & Kirk ends up with severe cheese burns. According to wikipedia, the world's largest pizza goes to:

The largest pizza ever made was at the Norwood Pick 'n Pay Hypermarket in Johannesburg, South Africa. According to the Guinness Book of Records the pizza was 37.4 meters in diameter and was made using 500 kg of flour, 800 kg of cheese and 900 kg of tomato puree. This was accomplished on December 8, 1990.

I wonder if they belonged to a wine club.