Filed under: EV/Plug-in, Tesla Motors While not every state offers as big a rebate on the Tesla Roadster as Colorado does, there is a federal tax credit of $7,500 available to people who buy the electric sports car. Drivers aren't the only ones that various governments want to help in getting electric vehicles on the road. Tesla Motors itself will benefit from a favorable bit of tax massaging by state of California Treasurer Bill Lockyer. We've know for a while that Tesla wants to open a...