Rattling when I accelerate?

I start my car up and I hear a tapping sound but when I accelerate it turns into a rattling sound then when I slow down it goes back to a tapping sound.
2000 ford mustang

Is getting a lot of miles on a car actually bad for the car if the car is well taken care of?

Back story: I have been using my car to visit a guy who lives about an hour away from me, and my mother has said that I "don't need to be putting all those miles" on my car. It is a well-taken care of Ford mustang with about 125,000 miles on it, and I have not noticed any issues at all. Cars are meant to be driven, in my mind.
Is putting mileage on a care actually a bad thing, or is mother probably pulling an overprotective mother of an adult child?

Problem with convertable top?

I have a 2002 Ford Mustang and the convertable top will not go up. When I first got it; the top would go up kind of slow but it would still work. I didn't use it that much but when I trued to bring it up the other day, it seemed like it didn't have anough power to make it up. I checked the pump under neath the back seat and their is plenty of hydraulic oil in their. Also note that it goes down fine just not up. Anyone else have this problem?

1998 Ford Mustang A/C problems?

I have a 1998 Ford mustang convertible and My A/C was blowing super cold air about 3 days ago and now all of a sudden its only blowing air thats bearly cool. Any idea of what it could be?

Is it expensive to fix an oil leak?

I have a 2007 Ford Mustang and I think I may have an oil leak.
I'm also due for an oil change - am I right in assuming that I can't get an oil change until the leak is fixed?

Is it fully possible for 1994 Ford Mustang to be a GT Cobra?

Is it fully possible for 1994 Ford Mustang to be a GT Cobra? - 1

Added (1). The vin number indicates it is a GT, but the engine says cobra; the bumper says cobra; and there are cobra emblems where ponies are supposed to be. I'm clueless when it comes to Mustangs and the car is my fathers. He does not seem to know much about it either. If you have informational links, please share them. I'm looking to start working on it.