As per Service Ontario requirements, a vehicle bill of sale in Ontario should include the following information:

• The date of the sale
• The full names and addresses of the buyer and seller
• The make, model, and year of the vehicle
• The vehicle identification number (VIN)
• The purchase price of the vehicle
• Any additional terms or conditions of the sale
• The signatures of both the buyer and seller, as well as the date signed.

It is important to note that a bill of sale is not a legal requirement in Ontario, but it can serve as proof of ownership and may be useful in certain situations. For example, if you need to transfer the ownership of the vehicle to a new owner, a bill of sale can provide evidence of the sale and make the process smoother and easier.

Additionally, it is recommended to have the bill of sale notarized by a lawyer or notary public to make it a legally binding document. This can provide additional protection for both the buyer and seller and ensure that the terms of the sale are upheld.