It will almost certainly be a clear coat on top of the colour (probably metallic yes but some one better than me can confirm this) and if its anything like mine very hard too.
depends what your trying to do but I have had best results (not just on the Bongo) with the Autoglim Superesin Polish and there pain restorer (like T-Cut) great as a general polish and does hide the minor swirls and scratches a bit.
There are probably even better products than this now, Though things can get quite expensive when you start looking at polish and wax. the Detailing world is insane.

Always have limited success with T-Cut on modernish cars, and yes in this field a bongo is modern

, probably an old product these days.