i hope you mean it’s got 5 years of COE left, not that the car had a 5 year COE renewal.
if it was just a 5 year renewal, the car has no real value beyond scrap and residual COE value as it MUST be de-registered by the end of that time.
this is a separate topic probably already addressed elsewhere in the form.
people still buy them though. if the depreciation works for you, go wild!