Dear Erin, please note that I did that same drive twice this spring, and it required stopping for 25-28 minutes twice. While I might have considered, in my college days, strapping on a diaper and goings the 450 miles and 7-8 hours without stopping, here I favored two breaks to eat and use the facilities. I also saved 20 gallons of gas and $75 - each direction. And I drove on solar power the whole way. I can not begin to tell you how sweet it was. Okay, call me and I'll take you out for a test drive, okay? I went to school with your sisters and they wold LOVE this car, M for the speed and style and sheer beauty, L for its amazing Eco-quality and oil-busting disruptive tech. Ready when you are.