Motor expenses for directors

Please could somebody help me with a query.

If a director claims costs for car tax, service, mot etc are these deductable for corp tax? This is for a personal car used for business, not a company car.

If they have also claimed the 40p mileage allowance (which my understanding is allows for the above costs) do the additional car maintenance costs need to be shown as a benefit in kind on their P11d?

Many thanks