I propose a couple of changes to the way this car is listed http://www.imcdb.org/vehicle.php?id=156242

To begin with, it is not actually an authentic Shelby. According to this article, since the GT500KR was not yet available they had to fabricate their own. According to the eBay listings for these cars which are not yet made, production is scheduled for March 2008. That would lead me to think it should have the extra info “Replica”, or maybe even “KITT” like the original Trans Am version.

[Quoted article] http://www.popularmechanics.com/automotive/new_cars/4237588.html
"Maintaining as much of the original beauty of the Shelby as possible was important—and not just because of the Ford connection. It had to be simple yet believable as a superhero." Once his vision was set, Belker turned to Ted Moser from Picture Car Warehouse to make his drawings come to life. But there was one big hurdle: The GT500KR doesn't technically exist quite yet. "So we had to finish their design first," Moser says. "Then we brought in a prop maker to create side skirts and spoilers out of wood, smooth them out, and sent them to a fiberglass shop to make molds. Once the parts are formed from those molds, we finish them and attach them to the car."

Also, it does not appear that there should be any spaces between the letters and numbers “GT500KR” based on the way it is listed on official websites http://www.shelbyautos.com/news.asp?id=12 http://www.svt.ford.com/.
Shouldn’t that be the way we list it then? Apparently the other GT500s on the site should omit the space between GT and 500 as well. http://www.imcdb.org/vehicles_make-Ford+Shelby_model-GT+500.html

Further, I think we should leave “Supercharged” out of the extra info. It is not like they are producing some normally aspirated GT-500s and some supercharged ones. They are all supercharged by definition of their model. It is not incorrect, just unnecessary.

Even if the car was "hand-made", it is still a "legal" GT500KR as it was provided by Ford/Shelby, isn't it? It is not the first pre-production model encountered. It is not like a replica made by somebody else than the car maker itself.

About spaces, we always insert spaces when it allows to make searches on parts of model names. In this case, clicking on "GT" gives list of all GT, not only GT 500.
It also makes the name more readable, IMHO.

About "Supercharged", if they include it in the full name (i.e. writing it after model name) in commercial documents maybe we can/should do the same. Else we can indeed remove it.