We often take I-75 south to the Florida Turnpike and then I-4 to WDW. Last Monday we skipped the I-4 part by taking the new I-429 beltway from the Turnpike before you get to I-4. It was 15 miles to the new Disney exit on a brand new interstate with hardly any traffic. Once you exit you pass under a big Disney arch over the new road on Disney property. You will end up at the western edge of the Coronado Springs resort on Lake Buena Vista Drive. It was so great to miss I-4 with its heavy traffic. I would recommend this route for anyone driving down on I-75.