This is an electric car, but it isn’t silent. There’s an eerie howl from the drivetrain as we accelerate into the irresponsibility zone on the speedometer. The Roadster Sport’s one-gear transmission is limited to one hundred and thirty miles per hour, but it isn’t shy about reaching that speed. Long before then, you’ll be assaulted by wind noise -from the headliner, from the loose-fitting windows, from the gaps in the doors. Even at reasonable freeway speeds, you’ll want to divert a few amps to the outstanding sound system.
