First off, my 62 year old mother just bought one....
If you're going to make a muscle car, give it some muscle!
1. Free up the intake flow. Flows like it has athsma!
2. Bigger exhaust
3. Better internals (rods and crank from '03 Cobra)
4. Chip it -- make it more agressive
5. A better AOD with higher shift points or a T-5 or T-56
6. Drop it at least 1"
7. Bigger rubber
8. Big suspension upgrade.
This car could compete with an M5 if and only if it is given a full helping of testosterone!
As it stands today, it's a Grand Marqis with a "pepier engine". READ OLDFARTMOBILE! It will spaun a new breed, let's call them oaters (not ricers) that will put AARP, VIAGRA, and RETIRED stickers all over it!
It's a decent car, but it could be soooooo much more!