You didn't have an option for neither
.
When I purchased my tailless Carrera, one of the first things I did was purchase another rear deck lid and a new tail (pricey), since the iconic tail was imbeded in my mental picture of what a 911 was. Never did install either and sold 'em after a couple of years as the "clean" look grew on me. I rarely have my car above 100mph...so I don't need one. Tracking one is a 'nuther matter indeed...YMMV.