Map the surfaces.
Use photographs to mark what changes and what stays. A full light interior and light seat centres within a dark cabin are different projects. The distinction affects the design, quantity of material and work involved.
Compare materials, not just colour names.
Ivory leather and ivory Alcantara will not reflect light in the same way. A glossy reference photograph is not a material sample. Compare texture, finish and thread in the light where the vehicle will be used.
Keep the method clear.
Our colour-change enquiry concerns replacement upholstery, not a promise to paint every surface. Ask which parts are included, what remains original and whether inspection is needed before a final proposal.