does the rear wing ACTUALLY provide any benefit?

[LarryIII]

The rear wing on the SVX trunk lid helps SVX drivers' arms stay in shape for those grueling beer drinking nights at SVX Meets.
After the trunk lid struts die, the rear wing provides additional weight and is positioned correctly to provide the proper downward force to persons lifting the trunk lid. This builds up the biceps and triceps without putting strain on the shoulder or elbow.

Any SVXer, worth his salt, will attest that when preparing for an SVX Meet there is no better exercise than lifting and gently lowering the trunk lid 10 times per day with the rear struts disconnected at least one month prior to the Meet.

DISCLAIMER: If you are not in shape you should start with only 3 trunk lifts per day and build up slowly to 10.