Keeping a sedan running isn't just about oil changes and tires; the cabin takes a beating every day. Sun exposure, spills, and worn fabric make an otherwise reliable car feel older than it is. Upgrading the interior is one of the cheapest ways to make a daily commute feel new again, especially if you shop around major holidays when prices softest.
Custom leather covers run about $400 for a decent set. You do not need to drop all four hundred dollars at once if you spread out the cost over time while hunting for manufacturer rebates.
A 0% APR window is a strict deadline, not free money. If you still have a balance after the 15 months ends, the standard interest rate kicks in on whatever is left, making those seat covers much more expensive.