Need comments from the experts. Situation: Wife has a wedding to go to at the end of January and we'd like for her to take the P85D leaving me with the twins and the minivan. This is a drive from Nashville to Greenville, SC. Luckily there are a number of superchargers on the way. Here's the math. Home to Knoxville SC - 183 miles Knoxville SC to Asheville SC - 126 miles Asheville to Greenville SC - 64 miles My wife isn't a Tesla enthusiast. She likes the car because of the power, comfort, style, etc. She is going to want to get on the highway and drive without worrying about range. In the minivan she would likely have the heat at 68 and do ~80 MPH. For those who don't know the area, the drive to Knoxville from Nashville is a straight shot with minor elevation changes and is posted 70 MPH basically the whole way. The calculator on the Tesla site shows that at 70 MPH, heat on, 32-degrees the range should be 219. I wonder if this is accurate and also what whether she will be able to push it up to 80 MPH. EV Trip Planner calculates that at 32-degrees outside and 68-degrees in the car that the trip will use 245 rated miles. (EVTP says that at 50 degrees it would be 226 rated miles. The average day time high for that time of year is probably closer to 50 than 30). Should I be worried that this trip is too close to the limits to make it comfortable for her? I don't want her to have to drive 60 mph just so she can drive the Tesla. Or am I overthinking it and she will make it driving normally but should avoid any stretches of doing more than 80 and would be better off just to cruise at 75? Maybe we make the decision based on the weather - if it's going to be warm she takes the Tesla? Happy holidays and thanks in advance.