Seat count is only part of the decision
Passengers and luggage compete for usable space. Include full-size suitcases, cabin bags, strollers and any equipment so the proposed configuration can be assessed before you commit.
Explain who needs which seating arrangement, including children and passengers who may need assistance entering a taller vehicle. A model preference does not by itself establish an appropriate fit for every traveler.
Build the trip around the actual pickup
For an airport journey, specify MIA or FLL, the flight and the destination entrance. For a hotel or residence pickup, add the tower, driveway or lobby instructions that distinguish it from the street address.
If passengers are collected at more than one location, list each stop in order. This changes the itinerary and the time required; it should be part of the request rather than an assumption made on departure.
Keep transfer and hourly requests distinct
An airport-to-hotel ride is a defined transfer. Several appointments followed by dinner are a different request, with a service window and changing luggage needs. Explain which type of day you have in mind.
Ask for your Escalade preference to be included in the written proposal. Vehicle assignment, passenger fit, the booked time and any additional charges should be settled together; a self-drive rental rate is not a chauffeur quotation.