I know your comment was meant partly in jest, but the 911 is a good example to use actually. It gets a facelift every four years, and each time you can see the minor improvements that bring the car up to date without making it look obnoxious. Well, apart from the current Turbo/S that is way too fussy at the rear.
Most manufacturers work to a four year refresh give or take, I think. Even something like a Fiesta can look more modern once updated, but where the FT1 was once fresh it’s now been surpassed in outlandish angles by anything Lexus, Infiniti and the new Griff. It’s dated before it’s even out.