slipmearoofy

Im thinking of purchasing a 2000 ford mustang v6, i fell in love with how the car looks, and i love fords, but there is a engine sound that im not sure about, i dont know if its normal or if its bad. can someone please help me!

this is the sound as best as i can describe... its a manual, but when i push on the gas it makes a sound like a old volkswagon, kinda like a steady putt putt putt noise, do you know what i mean? you know when an old volkswagon car or bus goes by and it sounds all pitter patter, like a rubber band is powering it, thats how this car sounds. i dont know if its bad or normal, it seems to run okay, when i turn the key off it still goes for like a second then dies...... please tell me if this is normal or something bad before i buy, thank you everyone!!!