Lazareth

Czech company UDX is flying scale prototypes of a tandem 2-up eVTOL it calls Airwolf. With individually-tilting ducted fan propulsion, it's got enough wing surface for efficient cruise flight as well as agile movement from a hover.

"We don't know if Lazareth is genuinely intending to test fly this thing," we wrote when we first saw La Moto Volante, "or just present it as a work of art." A new video answers that question pretty comprehensively, as it shows this beast taking off and achieving a stable hover on tethers.

French custom builder Ludovic Lazareth is not a man that does things by halves. He has just released a fairly revealing teaser showing a 4-wheeled motorcycle, whose jet turbine-hubbed wheels fold up to turn the thing into a hoverbike.

A memorable year, 2017 saw high-flying hydrofoils make a step down from boats to boards and bikes and new water toy debuts ranging from personal submarines fit for James Bond to underwater propulsion systems slapped on like a smartwatch. Here are our favorite water toys of the year.

Looking back over the year, 2016 seen a whole lot of weird and wonderful developments in the motorcycle world. Well, some of them just weird. Here are our favorite bikes from around the world that pushed the envelope in 2016.

Built around a gigantic, 4.7-liter Maserati V8 engine, this terrifying tilting quad bike picks up where the Dodge Tomahawk left off, with four single-sided swingarms, rim-mounted brakes, dual hub-centre steering and a bunch of other crazy touches.