a horse has shoes, 2444 shoes divided by 4 legs = 611 horses... Ferrari 599 GTB Fiorano
ps giddy up = prancing horse, 599 GTB = 1/2 numbers (or 1/3 if u count the fiorano and rate each part as equal), what other clues were there? mama mia is obvious...
btw u couldve had the entire name of "MC12" from the keys on that calculator

wouldn't be that bad either