Depends on how serious you are about desert exploration. For light desert tracks and wadis, compact SUV like Nissan Kicks or Toyota RAV4 works fine - rents for 2200-2800 AED monthly through Octane Rent. If you want proper desert driving to remote areas, get 4WD SUV like Nissan Patrol or Toyota Fortuner - costs 3000-4000 AED monthly but handles sand and rough terrain. Sedan works only if you're sticking to paved roads and skipping desert adventures. Guide at
https://techbullion.com/guide-to-monthl ... en-places/ discusses vehicle choice for exploring. Ground clearance matters for some tracks leading to hidden spots. I rented Toyota Fortuner - perfect balance, comfortable for city, capable for desert edges, good AC for summer heat. Most Abu Dhabi hidden places accessible with regular SUV, don't need hardcore 4x4 unless you're going deep Empty Quarter.