I searched here for any threads about firmware updates that improved performance to no avail. I have P04001 with the rev a battery and latest firmware. Is my performance any different than originally published? "The S 60 was equipped with a 302 HP 317 ft-lb torque rear motor with a top speed of 110 mph and 0-60 mph acceleration in 5.9 seconds." If not faster, were there any notable/noticible efficiency changes? Thanks in advance!