http://www.xpel.com/
Learn more at the site above.
1. Depends on how sections are covered. Example, partial coverage at the front over time will show unprotected areas as a bit dull compared to when you decide to remove the film. Experience comes from a 1998 vehicle @70k. In black.
2. All the materials I have used have been 3M and they all yellowed to some degree. Not real noticable in broad daylight. Worse under flourscent. I hear there are others that work better longer.
3. I am not sure GT experience makes a difference. There are more complex cars to do.
4. 3m works as advertised. Xpel in the site above is considered to have less orange peel. If I had to do it again I would go this route. I have seen it on other cars and it looks better than 3m orange peel wise.
I would spend extra to wrap as many edges as you can. It will be a total PITA for the installer. But you will not be trying to get the dark dust line off the edge when you wax. White, Yellow and Silver cars show this more than dark colors. A Tungsten / Black is not much of an issue. Red is kinda in between
You want a guy that cuts his own film. They have the ability to cut the film from diff mfgs. patterns. Some patterns can be increased in size slightly to allow for a wrap of an edge. Also, some patterns offer more coverage than others in the grille area. Keep in mind these guys pay for each pattern they download. But a guy that cuts his own film can mix and match.
Coverage:
Full front kit
Full hood + added the area closest to the wipers, not normally included
Top edge of roof - custom, no pattern at the time
Headlights
Mirriors
Behind the rear wheel
Lower Rocker panel - Added extra to cover the stripes to the edge above
Panel in front of the rear tire - the whole thing
Scoops - Leading edge
Some do the rear bumper as the diffuser kicks up a lot of stuff. I did not think of this at the time.
All that and I got a rock chip in the windsheild on the way back from the bra guy.:ack, hard to find, but I know it's there.
I would do it on any car with regret. Have used it on 4 cars now. Stands up well to track days on my Z06. Most guys that I run with either have beat up paint or wrap the car in blue tape before they run. For this car I drove around until I found some water to drive through. The water spots told me approx what areas needed the coverage from the tires kicking up rocks. over 7,000 track miles and not a chip or scratch. The film has some damage from what would have been a chip. I would rather replace film than paint.