All I can say is work out how much the full term of the loan would cost, then ask youself "would I pay that much for the car?"
Example, guy above who got $10k loan @ $50p/w over 7 years = $18,200 over the life of the loan. If that's what you're getting for your Hilux, say "would I pay $18,200 for this Hilux"?
It's a fine and admirable strategy to say "I'll pay it out sooner than I have to", but when it comes to borrowing money remember you should plan for the worst. Lot of folks in the US forgot that little detail, and now we have a global financial crisis thanksomuch!
Also bear in mind it's harder to sell an encumbered vehicle if you decide 4 years into the 7 that you want to sell it, and that it will be worth less by then.