Well about 6 months ago I convinced my mother to buy a 2012 Prius C (currently 7700 miles on it) as she drives 18 miles each way all streets to work and home. Works out great for her and all but; In July me and 3 friends are going to Pensacola Florida, from Los Angeles California. 2080 miles. My mom offered to trade cars for the week as I drive a Lexus SC400 getting less than half the gas mileage compared to the Prius and it'll save me a few hundred dollars. My friends and I be trading off driving trying to get their asap so I don't think that poor Prius will get a break aside from bathroom breaks and refills when it hits ~1/4 tank we'll be constantly going and as high as the speed limit permits us which is generally 70 but up to 80mph through a long stretch in Texas. Think the car will be alright with only a couple stops for gas & bathroom over a course of 2k miles? I'm not expecting 55mpg driving 70-80 but it'll at least be in the low 40s correct?I've driven it on many occasions but never at those speeds and am curious how it handles also. I've been in some American economy cars and they're shaking @ 80mph. Will I still get a smooth ride in the Prius @ 75+ mph? Heck, I know my old SC400 can do this trip so I'd imagine a 2012 car can. I'm just curious as what to expect from it and if it's a better choice.