400 miles in one day in a Cobra is a pretty good workout, but not really difficult if you know what to expect. Plenty of water and suntan lotion is critical.
I drive from the Philadephia burbs to upstate NY a couple times a year and always enjoy the drive unless it is raining or on one occasion a little snow
. Hey, The only guy who is good at Cobra driving in the snow is Jim Kellogg, but he is a nut! LOL Jim
Luckily my exhaust pipes go out the back. Not sure if I could deal with sidepipes for 4-500 miles?
As far as the left foot thing? Switch feet while driving and move your feet around. Sometimes I pull my left back toward the seat so my foot is flat on the floor of the car for a while.
Race everyone who is game and that will get the blood pumping too
Almost 14mpg is excellent.
I recently noticed when I use Tier 1 gasoline I get a 2-3 better mpg on the highway.