I had 2 Mustangs too, but right now I have only 1 Mustang. My 2002 Mustang V6 was totalled a few months ago and right now, I am left with only my 2001 Mustang GT. The 2001 GT had only 2,800 miles when I put it on the road in March. I now have 4,500 miles on it.
I've also purchased another car since my 2002 Mustang V6 got totalled. I wanted a much larger vehicle that had a lot more room than the Mustang so I purchased a brand new 2008 Dodge Charger R/T with the Road & Track Performance Package. I love the Charger. It's got a lot more room than my Mustang and it is also a luxury car. You should look at the Charger R/T if you are looking for a luxury car with some muscle.
I also drive 20,000 miles a year. And in a Mustang it ruins the fun if you are in a car that much.
I like chargers, but they aren't really the sort of car I am looking for. Plus i don't want a V8. I want something quiet, cozy and AWD.
I'm actually looking at Infiniti G35x's.