I towed a NACRA5©2 with my VW Rabbit full of camping gear ¥including girlfriend/crew's stuff¤ with no problems for many years©
You didn't say what kind of cat/trailer/stuff you'd be towing©
I think the advice about brakes is excellent© Also be sure the tow hitch is good - lots of older cars have what seem to be extremely sturdy bumpers, to which one is tempted to attach a clamp-style hitch© Go with a hitch that bolts to the frame, and use good safety chains©