In the IARC system, red meat is classed under 2A: which means it's probably carcinogenic. There's a strong link between heavy red meat consumption and bowel cancer compared to people who rarely consume or do not consume red meat. In fact, red meat is the example Wikipedia uses for group 2A.

Burnt food is IARC Group 2B, possibly carcinogenic. Acrylamide created by burning food has shown an increase in cancer in some lab animals but last I read it was inconclusive for humans as its rarely a staple diet for the vast majority of humans so it's hard to research.