Advertiser Potomac Motors is one of the two global Amphicar specialists. But there were more people after WWII who wanted to combine the best of both worlds.
In 1979 there was - for a moment - the Herzog Conte, largely based on Ford Granada technology. The ugly weighing more than two tons had a top speed of 150 + on asphalt. But it is not known how long it took him to get there. There are two 'units' produced. And they are apparently without a trace. Fortunately…