I was wondering if you release a car. take the old hyundai I10, could you then have a extremely similar body design like the 2014 hyundai I10 or the 1st 2nd and 3rd Gen Ford Focus
I agree that be awesome 
Do you mean new models following from older ones, or just facelifts? Examples you gave make me think first option, but not sure if you mean for example, something like the 1997-2000 Toyota Avensis versus the 2000-2003 Avensis.
yeah kinda example renault clio 2011 to the new 2013 one so yeah facelift rear facelift and kinda different bodys but look pretty much the same