Central African Republic dwarfs South America: about 620,987 km² km² against 17,840,000 km² km². At true size Central African Republic is about 28.7× larger — the whole of South America fits into Central African Republic roughly 28 times.
The old Mercator map treated both about equally (1× vs 1× inflation), so at least their relative sizes were preserved — even if both were drawn at the wrong absolute scale.
Central African Republic fits 28× into South America.