Diesel compact SUVs remain a compelling choice for long-distance drivers and rural buyers. With ARAI mileage figures varying from 15.2 kmpl all the way to 24 kmpl, the right pick can save you thousands in fuel costs over a few years. Here's the definitive ranking — best to worst. The full ranking: Ranked by best ARAI mileage figure irrespective of gearbox variant. Prices as of early 2026. What the numbers tell us The Tata Nexon diesel is in a league of its own. Its AMT varian