1) The car has to be within 7 years old to enjoy a reasonably good rate with car used as security. 6 [% |/ w6 p& H; D6 A' X2) Depends on your credit history and credit score. , c1 H9 q6 k! N2 x: Z; V( i3) Depends on your relationship with the financial institution. $ t0 ~! a! X3 B9 Y4) The only advantage you have is that you pays the cash, and can discount that from the seller. + Q$ x1 l6 Y- U4 Q5) For cars more than 7 years old, the interest can be significantly higher because the collateral value is hard to assess. Good luck.