We drive around WDW on all our trips and it's super easy and quick. Everything is extremely well signed. I wouldn't rely on google maps because it sometimes directs you to service roads that aren't accessible by the public. We stayed at CSR 2 years ago and it was one of the easiest to drive to the parks from because it's really centrally located. DHS is really close, 5 minutes tops. EP and AK are about 10 and MK is maybe 15 at the most.
My tip is to download/print a resort level map, especially if you have never been to WDW before and just familiarize yourself with the general layout so when you are seeing signs for certain resorts, you'll know which park you are closest to, for example. Other tip is if you miss a turn, don't panic just keep going and take the next turn, there will be more signs to direct you back to where you want to go.