Work out your maximum loan, minimum downpayment, and monthly instalment — based on MAS's loan-to-value and tenure rules.
The loan is only part of it. Pull your fuel or charging, parking, and maintenance costs into one number alongside the loan instalment above — the total most people never actually add up.
Compares the total cost of buying (loan + running costs, minus what the car's worth when you sell) against leasing for the same period — uses your loan numbers from above automatically.