Here's some facts and tips about repayment plans with the landlord: https://www.acto.ca/production/wp-content/uploads/2020/08/PaymentPlan_Tipsheet_tenants.pdf (taken from this site).
The best thing to do is to pay off the rent and arrears. If it's possible to follow the "rosy" rent plan you put forward, then do it. But, if things don't go well and the landlord begins to pursue eviction, then best to contact a legal clinic: https://www.legalaid.on.ca/legal-clinics/ You may wish to do that anyway.
I myself use a bicycle for local travel, and public transit for longer commutes. Musk's overpriced EVs are not the solution to global warming, IMO.