The amanti has an old school classy car look to it. thats probably what your dad likes about it. Personally, I'd go for the Acura TSX, but point your dad at the Chrysler 300 or even better the 300M

Dodge/Chrysler/Plymouth was taken over by Dahmler (Mercedes) and their new line of vehicles have been quite impressive.
Oh yeah, the Amanti is FWD, the 300 is RWD

The 300 is about 300lbs lighter, 30 more hp & torque, more options, etc. Although looking at the specs, the Amanti doesn't look like a bad car, but I'd much rather go with the 300.
You can dig up info and compare them side by side at
www.edmunds.com