You argue for argument's sake.
I don't do anything. You posted a wrong assumption & got called out on it.
An F430 looks in no way like an F50 but they are Ferraris. A Reventón is very much like an LP640 Murciélago (and like an LP670-4 SV in the front). When I think of Lamborghini, I think of the Countach's basic frame and then an evolution of power and facelifts.
Then you'd obviously haven't the first clue about each car's development if you believe the Diablo & Murcielago came from the Countach's design.
No more incorrect assumptions?
When you see a Corvette, you know it is a Corvette, whether or not it's the new C6 '09 ZR1 or a '74 Stingray Coupe. They resemble one another despite the time gap. But what comes second is Chevrolet. When you see a Corvette, you think of Corvette, then Chevrolet second. And that's why Corvettes are so recognizable; because they look so alike.
When you see a Lamborghini, you know it is a Lamborghini, whether or not it's a Countach, Gallardo LP 560-4 or the Reventón. But typically, you think of Lamborghini first, and then the model second. And that's why Lamborghini models are so recognizable; because they look so alike.
There is a difference to identifying a car by its model & identifying it by their manufacturer.
However, this argument doesn't work. If people can recognize Lamborghini by their shape, why do they need to change? Why does Lamborghini need to do something different if
other cars are even identified as Lamborghini? If anything, this works in their favor.
I could say Ferrari need to update themselves & do something different besides applying Rosso Corsa as their "official" color, but there's no reason to. That's their color, that's what makes them, them. Same with BMW. The kidney grill is their distinct trait.
Now, the reason your post before was silly was because you said they are updated versions of the Countach. This can't possibly be true. The Countach design was based upon a series of trapezoid panels & angles, making the car wide, but short. The Diablo, however, ended up being long & low, the aggressiveness turned down with a few cues being taken from a fighter jet at the time. It only shares a few styling cues with the Countach. If you really want to see how the Diablo's design is nothing like the Countach, take a look at the Cizeta as that's how the Diablo was supposed to look before Chrysler toned it down.
As for the Murcielago, it's design came from Audi's Luc Donckerwolcke who was informed to do something completely different from the original Diablo successor after creating the 6.0 & went for a much more rounded shape over the Diablo's.
As for the Gallardo, Luc & his team were told go with something that would be more agile & be more usable, which was everything the Countach & Diablo weren't.