Yeah but she actually never lifted 50 tons in the cartoons either, she maximally threw colossus around or bitch slapped Magneto through a hall~
Bolb as well could smash a whole car to pieces but never lifted a whole house~ They once stated in the series how strong they could be but really lifting over 50 tons..... you know the really big trucks? Those trucks which are making you feel like a tiny puny bug? Those are having 40 tons weight when fully loaded with bricks.

[img=http://hallo-nachbar.info/wp-content/uploads/2008/06/sin_msovleistschsteinsftruck.jpg]

Driver not included