Just brought a 2003 VW Bora 2.0 litre sport with 47000 miles on the clock - all seemed fine when I brought it, bar a mouldy smell which I'm currently coping with - but as I drove the car a little more I noticed a purring coming through the clutch pedal

I say purring as it feels like standing on a heavily purring cat at the bite point in every gear - it's definately worse in lower gears, yet when cruising on the motorway without my foot on the clutch, I can feel it faintly through the accelerator pedal

I know it's probably a new clutch on the cards but wanted confirmation before I brought anything, and to know what the cause for this would be?

Also, car is averaging 25mpg on motorways and 16mpg in town - I know it's a 2 litre but is this a bit excessive?

Thanks in advance