Hello guys i just joined today as im looking for some advice. Im looking to buy a 2006 or 2007 4.2 XK convertible. Currently 21 years old and in university ive just saved enough for the car, my big question is how expensive are these cars on a daily basis, the mpg is fine as i dont drive much my main concern is things like brake pads and oil changes. Will i have take the car to the dealer or can any garage do the work? Also how is the roof mechanism? is it likely to have any problems?