You can see representative parts of the Blue Ridge Parkway 60 miles on both sides of Asheville - Richland Balsam Overlook 60 miles to the south (the highest point on the Parkway at over 6,000 feet) to Mount Mitchell 55 miles to the north ( over a mile high, the highest mountain in the US east of the Rockies. However, the best part of the Blue Ridge Parkway is between Mount Mitchel and Boone to the north.
If you want to see some of the most unspoiled, beautiful mountain country anywhere (the locals call it God's country), I would suggest the following day long itinerary since you are coming from the north. Take the interstate to Wytheville Va. where there is a supercharger and it is a convenient place to spend the night. In the morning drive from Wytheville to Boone, NC via primarily US 21 and US 221 through Mouth of Wilson VA, Shatley Springs, NC (have lunch there is the restaurant is open), West Jefferson and on into Boone (about 90 total miles and a leisurely 2 hours). The roads are made for you to enjoy your Tesla and the colors are absolutely beautiful. Peak colors can usually be seen the third and fourth week iof October, depending on altitude and how dry the summer has been.
There is a Tesla HPWC charger at the Makoto's Japanese Steak House and Sushi Bar restaurant in Boone (patron's only, so you will have to buy something, but the food is good). With an S90D, you shouldn't really have to charge between Wytheville and Asheville.
From Boone, drive south on US 321, and pick up the Blue Ridge Parkway just north of Blowing Rock (which is beautiful in its own right, and a great place to spend the night if you get a late start). Notable scenic attractions along the Parkway are Grandfather Mountain, Linville Falls, Crabtree Meadows, Mount Mitchell (a must if it isn't in the clouds), Craggy Gardens and down into Asheville. The trip from Boone to Asheville via the Blue Ridge Parkway is around 95 miles and will take 2.5 to three hours , depending on how often you stop. Have your camera at the ready. The scenery is breathtaking. I grew up in Asheville (I live in the central part of the state now but have a mountain house just off the Parkway in Roaring Gap), so I may be prejudiced, but I have traveled all over the world, and I find this area to be equivalent in natural, unspoiled beauty to the Ice Fields Parkway in western Canada and Milford Sound in southern New Zealand.
You absolutely must spend the night in Asheville. If your budget allows, stay at the Grove Park Inn or on the Biltmore Estate. Check out Downtown Asheville at night. It is a happening place (Pack Square on a weekend in particular). During leaf season, reservations are a must.
The next day, don't miss the Biltmore House and Gardens built by George Vanderbilt, one of the largest privately owned great houses in the US, which rivals many of the great chateaus in Europe.
The supercharger in Asheville is well located close to the Biltmore Estate, and is fast and generally not crowded.
