The Surfer Bike

Perhaps no surprise that this is the brainchild of an Australian who likes cycling.

This is the StreetSurfer, a contraption that looks like a bike, but is handled like a surfboard. Its unusual four front wheels allow the rider to negotiate obstacles more easily and maneuver the machine using their body weight, rather than the handlebars.
Tony Varrone was inspired to create the StreetSurfer after seeing a bicycle prototype with the front wheel replaced by four skateboard wheels in 1998.

He spent years perfecting his design and it is now arriving in British shops — with a £ 399 = 806.30 U.S. dollars price tag.