A 50 Mph (80 Km/h), 70% overlap rear crash test. The barrier weighs 1360 kg. (About 3000 lbs.) FMVSS 305 Result: Pass - No electrolyte leakage. (See Below) FMVSS 301 Result: Pass - No Fuel Leak. This is a test on the fuel system to ensure there is no fuel leakage in a high-speed rear-end collision. There is no instrumentation in the dummies. Using the same test procedure as the FMVSS 301, the FMVSS 305 is a test to ensure the casing of the drive battery isn't damaged in a high-speed rear-end collision. (Limitation of electrolyte spillage, retention of propulsion batteries, and electrical isolation of the chassis from the high-voltage system during the crash event.)