Here are some things to keep in mind:
Dealers and brokers
While it might look like they're giving you a lower rate, they often charge additional fees. These fees make your monthly repayments higher.
Manufacturer 0% and 2% finance
Low interest rates sound great but there's usually a catch. The lower the rate, the less you may be able to negotiate on the vehicle purchase price. Always negotiate on price first before advising how you will pay for your car. Remember, if it sounds too good to be true, it probably is.
Adding to your home loan
While the interest rate on your home loan might be lower, you're paying it back over a much longer period. This can increase the total interest on your loan by thousands.
Balloon or residual payments
These reduce your monthly repayments but you will still owe a lump sum with interest at the end of your loan.