Based on 'Batboat' designs

Though adapted extensively for the purposes of luxury cruising, the Adastra's design draws from that of speedy craft like the Ady Gil (aka the Earthrace), pictured above. No, this wasn't a prop in a Batman film, (and it isn't Nissan's DeltaWing race car after an ill-advised turn). The Earthrace circumnavigated the globe in just under 61 days back in 2008. Another such svelte craft is the Brigitte Bardot (aka the Cable and Wireless Adventurer).