Pay off the car, but don't party away the R2300...
Your effective return, if you settle the debt is interest rate/(1-"marginal tax rate". Let's say your marginal tax rate is 35% and you're paying prime on the car, then by settling you are effectively earning 18.46% pre-tax guaranteed.
That's your hurdle rate if you want to invest in anything else and not settle the debt.
but don't party away the R2300...
Your effective return, if you settle the debt is interest rate/(1-"marginal tax rate". Let's say your marginal tax rate is 35% and you're paying prime on the car, then by settling you are effectively earning 18.46% pre-tax guaranteed.
That's your hurdle rate if you want to invest in anything else and not settle the debt.
but don't party away the R2300...