Good job! Even better if you won't need to get another vehicle for a long time.
I paid off the minivan recently. Now we have the pickup, tractor, and the mortgage. Those are three things we won't be replacing for a long time, if ever, so those won't be replaced with a new payment (unlike the minivan...which will need to be replaced in a few years).
I have resolved to put $500 additional each month to those debts. I know I need to tackle one at a time- I did it on the mortgage this time, but I think I will concentrate on the smallest one (pickup). If I keep it up, I can have all three paid off in 4 years!