Count bags as well as seats
Check the exact model, transmission, seating and luggage capacity. A car with enough seats may still lack space for everyone's suitcases. If you need a child seat, ask about the type, fit and cost in advance. Confirm any additional driver and whether the vehicle shown is the one the partner intends to provide.
Ask for a quote for your whole stay
Compare the total for your pickup and return dates, rather than only the advertised daily rate. For a week or month, clarify mileage, extension, maintenance and early-return terms. Ask about the deposit, payment method, fuel policy, insurance and any excess. Hotel delivery, airport pickup and accessories may affect the final amount.
Plan pickup and return together
Give the partner an exact meeting point and time, particularly if you arrive at Phuket Airport or want delivery to a hotel. Confirm arrangements for a delayed arrival and any collection fee. At handover, inspect the car together and record existing damage, fuel and supplied items. At return, keep the inspection result and the deposit settlement clear as separate steps.