For this week’s episode of GigaOM TV’s Green Overdrive show, we bring you a behind-the-scenes look at the testing program for Tesla’s next-generation all-electric sedan, the Model S. The vehicle will have a 300-mile battery range (the first of its kind), and Tesla has built 20 alpha Model S prototypes and is testing them around safety, durability, steering capability and electronics. Check out the video for a sneak peek into their alpha program!