Just purchased a 55 plate Ford Fiesta

and loving it! While im trying to get used to the bite on the clutch, ive noticed that if i put too much gas down and dont bring the clutch up quite enough then i get a horrbile whining noise from under the car, anyone got any idea what this could be or experienced it? Also seems to make the noise sometimes when im rolling in traffic in first gear... it could be nothing and me just being paranoid but doesnt sound good

any help would be appreciated
