New Prius rear-ended. Would Geico buy me a new one?

Yesterday my beloved Prius 2005 (bought in May 2005, only got 12000 miles) got rear-ended pretty bad but not enough to total. The other party is at fault and his insurance is from Geico.

I live in Georgia, which requires insurance companies to pay diminished value for damaged car. Even with that I know my prius would never be the same again.

I heard from somewhere (I forgot where) that Georgia claimants can ask for a new replacment if their insured new car got damaged in collision.

Would some one please shed me some light on how I should demand Geico to buy me a new prius?

I am pretty much determined to do this because if I keep this car the bad memory will stay in my head for the next 10 years.

Thank you so much!

Joy