The Signature Performance model is powered by a 416-horsepower AC synchronous electric motor producing 443 pound-feet of torque between zero and 5, 100 rpm, with a zero-to-60-mph acceleration of 4.4 seconds and a quarter-mile elapsed time of 12.6 seconds.
Of course, since cell phones have been in use for a relatively short time, we cannot rule out the possibility that heavy and long-term use may prove to have effects when more time has elapsed.
You can cash them in at any time once six months have elapsed, although there is a three-month earnings penalty if they're redeemed within the first five years.