Does a PT Cruiser have a built-in fluid catch pan?

My mechanic told me my Cruiser has a leak. I
always check for leaks on the ground and no
evidence of any fluids.  He said that is because
there is pan that catches fluid.  When I gets to the
point where fluids leak on the ground, it must be
very bad as the drip pan is overflowing.  Is this
FACT or FICTION?