The history of motorcycle engines powering other vehicles goes back a long way. Look at the original Morgan 3 Wheeler, for example. Almost a century ago, J.A.P. bike engines were plunked onto the front of a strange piece of machinery with two wheels in front and one in the back. It proved to be popular and a rather high-performing vehicle in its time. For this Top 10 list we take a look at other applications for motorcycle engines. As you can imagine with a list like this, there are a wide variety of vehicles. Some are production cars, while others are one-offs or boutique items. And yes, even though this is Motorcycle.com, I want to get behind the wheel of every single one of these! So, if youíre a rep from one of the below companies (or are simply a kind soul who owns one), give me a jingle and letís make it happen!