Each year, amphibious vehicle builders participate in a competition for the world's fastest amphibious "land speed" vehicle and this year’s winner was a cool looking silver vehicle dubbed Sea Lion that broke the top water speed record. This year, the award went to Marc Witt, with his prototype developed beginning in 2006.
It's powered by a 13B rotary from a 1974 Mazda RX4 to run 125mph on land and 60mph in the water. The Sea Lion doesn't hold the title officially, but the amphibious vehicle has been worked on for the past six years and has remained competitively fast during the course of that time. Its asking price is $259,500.