That is a bit over the top to be honest. With such paltry changes and or designs, i would THINK, they would try and keep it closer to the 400K rather than 500K. Unless Lamborghini is attempting to pull another "Reventon" stunt, by rebadging and renaming an already established and designed car, and pull astronomically high margins to pad their pockets off of niave people with money.
Who knows, but we'll find out at Geneva no doubt.