The MWC-4 is Yamaha’s leaning multi-wheel technology. Unlike previous concepts or the Tricity production bike, the MWC-4 has four wheels rather than three, and a driver rather than a rider. A car-style driving position and all-enveloping chassis mean its not really a bike at all. Yamaha says it has ‘a level of comfort not found with a conventional motorcycle’. That’s probably because, by conventional definitions, it’s a car…