With Chevy the letters/numbers after the name is option packages.. SS, LT, Z28, etc Like mentioned already the Chevelle is the base line car... Chevelle maibu is an option/trim package.. Nicer looking interior, better engine, better options like radi...
tool has been around longer than chevelle, so maybe its the other way around. chevelle puts on an ok show. i saw them at arco arena in sacramento ca w/ nickelback.
Like the last guy said, it's just a difference in trim level. At the very least, you could get a Chevelle, a Chevelle Malibu, or a Chevelle SS. Even then there different trim options within the levels. I know the exterior stainless trim is involved. ...