My wife was the one to drive my truck home from the dealer,and she never drove under 80 mph on the 200 mile trip home,i couldn't keep up with her in my company vehicle,lol. The first day she had her 1320 Challenger she wound it up to 140 mph,i would never have known if the car didn't store the top speed in the cluster,neither incident has seemed to affect either vehicle,lol.I wouldn't reconmend doing what she did,but i also wouldn't worry about a 700 mile trip with a new vehicle ,just stay at the speed limit with some pedal variation for the first couple hundred miles,then after that drive it like you stole it,it'll live longer if you drive it aggressively every once inawhile