If you are an EPC or APC/ you can find the discounts on the website. They average between 20-35% off but not sure if the value is any good since the prices are generally inflated. (Avis, Alamo, etc). EK Platinum also gets you a discount. I paid AED 1500/month(Thrifty) for a small car once with basic insurance. It was the best price I could find. Normally lowest will be AED 1800 onwards.