The question is here: Did the US ban the Volkswagon XL1 for being too fuel efficient? More than one person has commented on it saying that asking about motivation is off topic. That's fine, my actual question isn't asking someone to read minds. If the car is indeed banned for sale in the USA, th...

Are questions about the existence of repeatable, scientific experiments to validate a hypothesis on topic? For example, there are two questions asking for experimental evidence for evolution, one of which is closed, one of which is not: Are there any experiments that prove evolution? Demonstra...