Do the Space Marines have an MBT equivalent

I know that things aren't always a 1:1 ratio in 40k to current era, but is the predator the Abrams equivalent? Or is it like an upgunned Bradley and the rhino an upgunned Humvee? I know they have the FW tanks are those more like the German Ratte and Maus superheavy tanks?

I wanna make a mechanized space marines chapter and this would help a ton in setting their backstory.