Indiana → Kentucky · Interstate 65 / Interstate 70
On heavy-rain or dense-fog days the Indianapolis, Indiana, to Louisville, Kentucky, leg routinely demands well more than the 2h 11m estimated: Interstate 65 / Interstate 70 carries known hydroplaning hot spots and reduced-visibility corridors that justify dropping to 35 mph through a few short stretches. The outbound run covers 184 km (114 miles) over varied topography between Indianapolis (the capital of Indiana and home of the Indianapolis 500 motor race) and Louisville (the largest city in Kentucky and home of the Kentucky Derby horse race), demanding sharper attention on mountain descents and shoulder-less curves. Before pulling out, check brake-pad wear, tire tread depth, and washer-fluid level in the reservoir. Fuel spend holds near $15.36 for the 16.7 liters (4.4 gallons) consumed. Even in adverse conditions, the flat tariff of $0.43/km guarantees the standard outbound payout of $79.12 — log any incidental costs (extra toll, mandatory meal, emergency lodging) in a separate field on the Clara receipt.