Britney Spears' father James Spears was granted permission Monday by a California court to "sell or dispose of" an undisclosed number of her seven cars, People magazine reports.

One of James Spears' lawyers said the cost of upkeep for Brit's army of vehicles was really running up the bills, so much that the sale of some of her cars "will save substantial expense to the conservatorship estate," People says.

Spears' vehicles include two Mercedes, a white Mini Cooper convertible and a black Audi.

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James Spears and one of the singer's lawyers will maintain control of her affairs until a hearing set for July 31.