Collect the essentials.
Write down the preferred model, start and end dates, delivery address and return address. Add approximate times, passenger and luggage needs, and whether you want to drive or discuss a chauffeur service.
Separate fixed plans from preferences.
A flight, meeting or event may set a firm deadline. A model or meeting location might be flexible. Making that distinction gives useful context without treating a preference as an agreed arrangement.
Ask for the conditions that matter.
Before agreeing, check driver eligibility, deposit, payment, insurance, excess, mileage, permitted use and cancellation terms. The answers should relate to the specific proposal, not to a general assumption about luxury car rental.
Keep the final plan together.
Review the car, dates, addresses and contact arrangements as one plan. If something changes, ask for the revised details to be confirmed. Preparing an enquiry is a step towards a proposal, not a booking confirmation.