Our friends athave taken an unflinching look at the Tesla Model S in a new video. The crew originally planned to pack up and whip the electric sedan all the way to Las Vegas from Los Angeles, but got sidelined by a flat tire. The ensuing detour to a Tesla service center resulted in a day of hopping from charge point to charge point and a number of close calls on the range front. Confronted with cold temperatures, a desire to make time and some serious topography, the Model S pulled up short on projected range but never left the guys stranded.The team eventually makes it to Vegas and discovers the aggravation of trying to charge the car with anything other than the company's supercharger stations. The return trip goes quite a bit better, however, and KBB starts to figure out what makes the Model S so special. We won't ruin the end for you. You can check out the full clip below