The 20/4/10 Rule for Car Buying: Does It Still Work in 2026?
The 20/4/10 rule for car buying turns a complicated purchase into three memorable limits: put 20% down, finance the vehicle for no more than four years, and keep total transportation costs below 10% of your gross monthly income. It sounds simple, but the car market of 2026 is not. Vehicle prices remain high, ownership costs ...


