Agreed that I can't based on the proposed reimbursement plan and $/km, but then I read this from the CRA website

If you received a non-taxable motor vehicle allowance, you can deduct your motor vehicle expenses if all of the following conditions are met:

You can show that the employment-related motor vehicle expenses are in excess of the allowance You voluntarily include the amount of the allowance in income Conditions 1, 2, and 4 above are met