How much do you all think a used 2004 red mustang with leather seats should cost?

There are way too many factors for the average user to give a good estimate. 1. The model of the car: is it a cobra, a gt, mach 1, convertible, base model, etc. 2. What kind of mileage has it got? Higher mileage means that the value is lower. 3. What is the overall condition of the car. In good condition, it would be worth something. Does it have any major blemishes such as dents, scratches, fading, poor paintwork, etc. 4. What other options does it have. 5. Vehicle history. 6. Location of the vehicle. If you are looking at a base mustang, red, with leather seats at about 75,000 miles, $6500 to $9000 sounds like a decent price. The condition of the car and extra options may cause the price to vary. I suggest you have a look around. Look in auto trader magazines, kelly blue book, other dealerships, ebay, and have a look and see what the mustang you have in mind would go for.

Well if you included more details about it maybe you could get an accurate response. If it's low miles and looks clean and isn't salvaged or anything it could be anywhere from 8,000 if it's a v6 and up to maybe 13,000 if it's a gt, which I'm assuming it is because of the leather seats.

Go to www.nadaguides.com and type in all the features of the car. The value of the car depends on it's overall condition, features and options it has and what type of Mustang it is. Is it a basemodel, GT, Cobra, Convertable, Mach 1 etc...

KBB.com Will tell you exactly how much its worth.