Your car is a tool meant to make life easier, but scraping ice in freezing temperatures is the exact opposite of that. Installing a remote start system now keeps your interior warm and your windows clear before the first frost hits.
Shops are usually quiet in late summer, so you can often score a better price before the winter rush hits. Expect to pay about $450 for the hardware and the professional installation.
The 15-month window is a deadline, not a gift. If you still have a balance once those 15 months are up, the card issuer will start charging interest on whatever remains, which is the fastest way to turn a budget-friendly project into a debt trap.