TLDR; They are so fucking heavy that normal guardrails on the sides of the road (like on mountain roads and probable bridges too) can't stop them and you could go right through them. Yet another good reason to not have a EV. Also, can we tax their registration higher because of the increased damage to roads due to their weight? Archive: https://archive.today/HZGgK From the post: >>Electric cars are so heavy that they can burst through safety guardrails designed to keep regular gas cars safe on the road, new research has revealed. Researchers at the University of Nebraska have been probing what the extra weight of EVs means when applied to a collision. They drove the vehicles - which typically weigh between 20 to 50 percent more than a regular car - into barriers and guardrails as part of the testing.