So about the Collossi Rebicantus?

[LineageRazor]

In fiction, red things tend to have a higher performance (i.e. Char Aznable's Red Comet from Gundam, which literally just looks like a standard issue Zaku painted red but with three times the speed). The color just denotes that it's better than standard Magitek Colossi.

It's true! Da red wunz go fasta!