Tesla's New Roadster to Cover Two-thirds More Miles Per Charge

U.S. electric car maker Tesla Motors will relaunch its Roadster model with a new battery pack that will increase the distance the car can travel on a single charge by nearly two-thirds to more than 400 miles. Tesla will demonstrate the enhanced range for the new Roadster in a drive from San Francisco to Los Angeles in the early weeks of 2015, the company said in a blog post. The current Roadsters can travel up to about 245 miles on a single charge.