The five most efficient new cars in 2026 under $30,000

Affordable, fuel-efficient vehicles are harder to find in 2026 as new-car prices climb, but even within a $30,000 budget, there are still a handful of standout models that deliver impressive mileage without forcing buyers to overspend. These efficient newcomers prove you don’t have to choose between practicality and everyday affordability, you can have both.