I'd say it depends on what car you get it from. If you snag one from a CRX or Miata, yeah, id' be concerned. But these days a Mazda 3, Toyota Corolla or any other modern "mid size" is going to weigh as much or more than a vintage E body. Heck, my 94 Stealth, while a some what smaller car, weighs over 4200#, 800# more than my Challanger that is 20 years older.