Theres no need to be rude.
From the number of posts/ rep that Misho has you should be able to deduce that he probably
does know what he is talking about.
It would have been better for everyone if you had argued why you think that the M5 and the Gallardo can be compared rather than being insulting.
Secondly;
No you can't compare the M5 and the Gallardo on a completely level playing field.
So what if it has a V10, carbon composite brakes and a seven speed gear box, it doesn't change the fact that one is a mid engined sports/ supercar, and one is a high performance 4 door sedan.
They are developed in completely different ways to do different things.
The Lamborghini is designed to be a relatively practical and 'easy' to drive supercar, with focus on performance, with a few consessions to practicality and comfort.
The M5 is designed as a fast saloon, it is designed to carry 4 people (you can tell by the extra doors and seats), very fast. It has more of a compromise towards luxury, comfort, and practicality (it has a boot you can fit things into).
F1 technology does not an F1 car make...