IN SOME WAYS, the new Cyberster represents a wistful gaze back at MG’s glory days. That’s because this is a two-seat, drop-top sports car (or roadster, if you’d prefer), like the MGB and MGF. On the other hand, the Cyberster is thoroughly modern in thinking. It looks very different from anything in MG’s back catalogue (there’s no retro styling here), has a name that could have been chosen by Elon Musk, and is fully electric.