I'm working on a large project with a deadline, and falling temperatures in the Northeast are influencing my work performance. What I need is a portable, efficient, and safe device and/or method that can quickly heat the outside of a car.I am working with temporary adhesive vinyl panels that are being applied to the entire hood and trunk of New York City taxi cabs. We can only apply these panels for about 2 more weeks, and we are trying to cover as many taxis as possible. The weather, however, has been slowing our progress. When the temperature gets to about 60 degrees F and lower, the panels become very brittle, almost like paper, and lose some of their adhesive properties. Application becomes very difficult. We're able to keep the panels in a heated vehicle, which helps a bit. But the outside of the cars, particularly the trunks, are too cold for a proper application. The hood can be easier if the engine has been running for a bit, because this warms the panel and restores its malleability.Does anyone have any suggestions concerning a fast, efficient, portable, and safe method for heating the coachwork of a vehicle? If you can't meet all of the criteria, the device and/or method must at least be portable. But I'm curious to hear any other suggestions, as well. I've come up with a whole slew of ideas that are plenty fast but are in no way safe. Let's face it, though, they're still fun to think about.Any help would be greatly appreciated. I have faith in the creativity of Instructablers! And think of it this way; your help can contribute to a really excellent project. If anyone would like more info, gardenintransit.org. Rock on.