Nothing's stopping you from picking up a more modest villa right now and living away from all the noise of central Dubai. Then once you've saved up enough you can always sell and upgrade to something nicer, a lot of people do exactly that over there. Otherwise you're just throwing money away on...
Knowing the main routes around the business districts is super helpful before you get behind the wheel. Having a phone mount for the dashboard is also essential so you can keep your eyes on the road while checking the map. You can look into options for car rental in Moscow right here...