The original factory type luggage rack for the MGA has long steel straps front to back to distribute the load along the surface of the aluminum skinned boot lid. This allows for heavy loading without damage to the boot lid. Many aftermarket luggage racks are four-poster designs with no sucn straps, and just four bolts for mounting. These aftermarket racks can't carry much of a load before deforming the soft aluminum skin on the MGA deck lid.

The original type luggage rack can be assembled wrong, ending up in the wrong position on the deck. If the brackets are assembled backward, the rack will be positioned too far forward. It still works, but just looks funny to the trained eye. It may also put the load a little too high as well as farther forward, which may be of some hinderance to rear vision with the dash mounted rear view mirror.
 

MGA factory type luggage rack mounted right

MGA factory type luggage rack mounted wrong

For details on the correct mounting for the MGA luggage rack, check
Tech Tips at Little British Car Co., Ltd., date 07/18/04.