How does Porsche ensure that every 2015 911 GT3 is properly put together and all of its systems are working properly? Well it has a huge testing facility of course. The facility is very German and very nerdy in all the ways that I love. Porsche has released a video that shows the testing facility in motion and it is amazing. Each car that comes through is fitted with special plastic body panels that are marked and padded to protect the cars, but I am sure the automaker also tests for panel inconsistencies.