Ms Penn, who told the panel the yard has a rat infestation, said: “Over the Christmas and New Year period, when obviously the cars were stationary, they became a haven for rats.
“And when the bonnets were popped, all of them by [the] facilities [team], they found rats’ nests in every single car.”
“The cars are currently off-site being checked mechanically and fumigated before they come back, also we have some temporary cars in place at the moment.”
The 13 new Minis which the borough has leased have since been delivered to the council.
In October, people living near Maidenhead Town Hall complained of growing numbers of rats. In November the council said the land where rats were believed to be nesting is privately owned, and the borough would work with the landowner to address the issue.
A Royal Borough spokeswoman said today the cost of the repairs was covered by insurance, while rat traps have been deployed to try and address the infestation.