Perhaps that's the deal they gave me then, except that I had to book an extra day.
I can confirm that this is on site, and not a 3rd party external car park.
Call 01912144341 and quote "Family and Friends" and its £29.99 for a week, on site, long stay. (Not my find, it's on here somewhere)
Great price if it's actually one of the Airport car parks - cost me £52 for 10 days at Manchester Airport with Holidays Extra, could of got it cheaper with an off site park n ride. Hot
Give Hays a ring, have a look on travelsupermarket or holidayextras to get a better idea of the savings.