A picture of my 10 years old debadged 316i

Wanted to record down my thought process for future reference. Renewed my COE(10 years) that is due this month. I paid S$86,677 using last month's PQP to save $7k. PQP is the price of 3 months avg COE price, its the price you pay if you wish to renew your COE, it stabilizes the trend and makes it easy to anticipate for price surge. You can renew one month pass your expiry, but you will need to pay a small fine. I paid cash upfront without taking any loan. $86,677 works out to be $722 depreciation a month. After 10 years of usage my mileage is still low at 57k km. As I need to fetch my elder son to and from school on a daily basis now, my usage will ramp up fast. I need a car and renewing COE seems to be the cheapest option....