Carbon fibre enables the creation of shapes impossible with press-formed metal, for example the butterfly doors.

The lack of A-pillars normally surrounding the windshield means that the roadster's butterfly doors had to be rethought.

It's got the same long nose, a cockpit seemingly plopped on top of the rear axle and tiny butterfly doors.

Both butterfly doors would be able open and drop you off on either side of the street since the bike can travel in both directions.

Butterfly doors add an exotic touch to the shapely exterior of the MC20, but the looks aren't just for show.