Sea Lion was designed using CAD software and spread sheet calculations, by M. Witt. The vehicle is primarily, TIG welded 5052 Aluminum constructed from CNC plasma burned shapes and other CNC milled components. Created to nab amphibious land speed record, the machine uses a Mazda 13b rotary engine for propulsion, and its creator says the drivetrain is good enough to launch the vehicle to 180 miles per hour if there’s enough roadway. Given that the current record sits at 125 mph, the Sea Lion should have no problem nabbing that title.
Top speed on the water may be a bit more cumbersome, however. The quickest amphibious vehicle can get to 60 mph right now, and Sea Lion’s builder says the creation will need more horsepower to make that happen.