The shortest car route from Toronto, Ontario, Canada, to Myrtle Beach, South Carolina, USA, is approximately 1,140 miles (1,835 kilometers) and can be completed in about 14 hours of driving time, excluding stops.
Here's a step-by-step guide to the shortest route:
Step 1: From Toronto, take Highway 401 East towards Kingston.
Step 2: Continue on Highway 401 East until you reach the border crossing at Ogdensburg, New York, USA.
Step 3: Cross the border into the United States and continue on Interstate 81 South.
Step 4: Follow I-81 South through Syracuse, New York, and Scranton, Pennsylvania.
Step 5: Continue on I-81 South until you reach Interstate 26 West in Johnson City, Tennessee.
Step 6: Take I-26 West towards Asheville, North Carolina.
Step 7: Follow I-26 West until you reach Columbia, South Carolina.
Step 8: Take Interstate 77 South from Columbia towards Florence, South Carolina.
Step 9: Continue on I-77 South until you reach Myrtle Beach, South Carolina.
Please note that this route involves crossing the border between Canada and the United States. Be sure to have the necessary travel documents and be prepared for border crossing procedures. Additionally, traffic conditions, weather, and personal driving preferences can affect the actual travel time. It's always a good idea to plan ahead, make rest stops, and check for road closures or accidents that may impact your journey.