Since then Brembo's aluminum brake calipers have come a long way both in competitions as well as for street bikes. They have changed shape, number of pistons, surface finish, coloring, design approach.
In short, they have evolved but always without setting aside this material. Aluminum in fact ensures a perfect mix of lightness and stiffness, without neglecting the advantage of achieving fine and eye-catching surface finishings. Lighter weight means better performance, both in braking as well as in acceleration, better agility in changing direction and less fuel consumption.
Riders know this very well. The changes, for an object of this size may seem minimal, but we must not forget that the calipers are unsprung weights: even a few hundred grams more increase the braking distances, reduce the acceleration and make changing direction less smooth.