Vinyl wraps are good, but there softer than paint they also typically are only rated for a 7 year life span, Rust build up behind them can be a issue + they need delicate care, you really don't want to be pressure washing them too hard too oftern which kinda limits there use in of-road stuff. That said again the better films do have glues that set to some degree so its not too bad, but hot pressure washing will still strip most of them with ease. Also unlike paint wraps once damaged need that panel replacing you can't really touch them up. The inks do fade a bit in the sunlight so change just the wrap on one panel on a couple of year old job and it will stand out like a sore thumb against the rest of the truck.
3M do a special clear protection film
Protect your vehicle's paint with Scotchgard™ Pro Series Paint Protection Film It works well, but its not cheap and protects very well against gravel rash, though may not hold up so great against bushes. Its really common in the boy racer crowd or higher end motors protecting top end finishes, most of thoes guys only use it on the high impact areas though, like the front edges of bonnets and front wings - bellow bumper areas. The self healing is true and pretty amazing to watch scratch it and come back in a day or so and its noticeably better though never really totally heals, but really does hide minor scuffs well.
Best all over protection is probably still just one of the better harder 2 part clear coats as used in the auto world. Some of those are so clear you can really build them up thickness wise and they also give great UV protection to the paint underneath which may be more important to your application than you realise. Some paints fade really fast and badly still with out a top coat with something to block the UV rays. Most minor marks if just in the clear coat can either be buffed out or built up and buffed out back to original A1 condition.
As to the plane thing, don't mind gravel rash, fully get that, but its the going through bushes part still seams best avoided. Trust me i have been flying model heli's since i was a kid, back when it was hard before its gyro stabilised everything, hitting bushes was bad + It was bad when the owner of said bushes found out (Mother was PISSED i had halved the height of her rose bush)
