According to reports from hellforleathermagazine.com and Wheels24.co.za Yamaha has filed a patent application to develop a turbo-diesel motorcycle. The application from the European Patent Office covers various technological developments, including an in-line four-cylinder inter-cooled turbo-diesel engine.  Could this mean we can expect a turbo diesel Rhino in a few years? While At this time Yamaha has not officially announced any plans to build a turbo diesel-powered bike or a UTV, this news might be a sneak peak in the future.  Lets just keep our fingers crossed!