Kentucky → Michigan · Interstate 65 / Interstate 64
Driving back into Detroit, Michigan, after wrapping the agenda in Louisville, Kentucky, tends to invite quiet reflection on operational efficiency: 600 km (373 miles) along Interstate 65 / Interstate 64 and another 5h 43m behind the wheel, not counting reception time, lobby waiting, and the actual meeting. Anyone returning from the place known as the largest city in Kentucky and home of the Kentucky Derby horse race reconnects with Detroit — the Motor City and historic capital of the American auto industry — carrying the dual sensation of a job done and accumulated fatigue. To minimize tiredness, alternate music, a technical podcast and absolute silence each hour. Additional fuel spend on the return runs $50.14 (54.5 liters / 14.4 gallons). Equivalent reimbursement totals $258.00 at the $0.43/km tariff. On the Clara receipt, log notes about active road work seen along the way — the operations group uses that data to refresh the route's standard time each quarter.