Just drive the car home and pay no attention to the grandmothers on the forum who are afraid of their cars. They wouldn't let you have a BB gun either , 'cause you'd put your eye out. There is absolutely nothing to driving these cars as hard as you want, they drift nicely and can be steered easily with the throttle. I did that on my test drive when I bought my SPF 427FE. You will have no trouble with the power, it is only as dangerous as you are...
That being said, try to remember that Arizona has a neato ticket if you drive more than 20 over the limit or over 85 anywhere (even in a 75) called "Criminal Speeding" which is a class three felony. Over about 100 will get you three days in jail.... Don't get too wise with tailgaters either:
http://www.scottsdaleexoticcarclub.c...read.php?t=718
The nice thing about cruising the 93 is you won't have to do any downshifting.. the elevation change is only about 5000 feet...