Puerto Banús runs on a particular kind of car, and arriving in a rental that fits matters here more than most places. This page lists Marbella's premium fleet — German saloons, convertibles, and a handful of genuine performance cars — from suppliers who specialise in the segment rather than treat it as an upsell.
Deposits on luxury vehicles run higher than standard rentals, typically €1,500–€5,000 depending on the model, and every listing states the exact figure along with mileage limits, since unlimited mileage isn't always included at this tier.