We knew the Tesla Roadster was fast, but not this fast: after just three years on the market, the Roadster is no more. In about two months, Tesla will cease taking orders for the all-electric Roadster in the U.S., marking the end of an era during which the company helped prove to an often-skeptical public that electric vehicles could perform alongside conventional gasoline performance cars (for a six-figure price). But Tesla isn’t going anywhere. The company is winding down its Roadster production so it can focus on the much more moderately priced Model S, its $58,000 all-electric sedan that is expected to go on sale in mid-2012.