2012 civic dash in 2008 civic?

I have a 2008 honda civic ex sedan. Is it possible to put a 2012+ civic dash with the extended speedometer into my 2008 civic? If it is how difficult would it be?

Very difficult.

They are not even close. Requires a lot of re-engineering, custom modifications, retro-fitting, and the electronics might not be compatible too.

Just not feasible. Much better to go the custom aftermarket dashboard kits. They are designed to be different but also designed to fit you car.

Not impossible though.