Because he can.
Taking pictures of your pet wild animal next to your exotic supercar is all fine and good, but let's think practically: when you need to move that cat from place to place, you're going to need some more utility than your Bugatti, Lamborghini or Ferrari can provide. Lucky this guy in Dubai has a full-size Nissan Armada SUV in his garage. Now he can easily go anywhere he has to go, with enough room for the kids, groceries and a live lion in the cargo area.
Why? Because it's Dubai. Check out the video here: