I get the feeling that "common knowledge" doesn't apply to Aptera as much as it would to, say, a Model 3 (as they're about the same size). Remember that most of Aptera's weight is in the battery pack - which is mounted at hub-level. How that mass moves should be highly predictable so I'm guessing they can do a great deal to mitigate ride and handling issues before they even build the first one. But you're absolutely correct: We won't know ANYTHING for certain until they have one rolling.