What comes to mind when you think of the natural habitats for supercars? We would guess you're thinking of sunny coastal and mountain roads, rented-out racetracks, car shows, and, of course, the owners' spotless, climate-controlled garages. Roads covered in snow, or any precipitation, really, probably never come up for supercars from more entry-level to one-offs. Yet, Bugatti has been doing thorough cold-weather testing and tuning for its new Tourbillon, having seemingly finished its last session. The automaker even put together a little video to take people inside the process. It genuinely sounds like work, but also sounds awesome. Winter Testing Is Busy In the video above, Bugatti's chief development driver Miroslav Zrnčević reveals that the company does all its winter testing in a surprisingly short four-week time frame up in Sweden. Also, while around 20 people end up working out there at some point, around six people do the bulk of the winter work. Adding to the time crunch is the need to test at sufficiently cold temperatures, which Zrnčević reveals sometimes isn't possible during the day, leading to night testing. He mentions that double shifts and weekend work are all regular occurances as a result. We're guessing that the day Bugatti boss Mate Rimac got a test car stuck in the snow was one of the busier days.BugattiOf course, the work itself does look like a blast, and Zrnčević says so himself. Who wouldn't have fun spenging days on frozen lakes and back-country roads with a 1,800-horsepower Bugatti? Much of that time clearly involves getting the car sideways, too. This is necessary, as another test driver explains in the video, because the traction control, ABS, and other settings need to be adjusted, particularly for each drive mode. The comfort setting needs to be controlled and tight, and the sport modes can offer more slip and less intervention. The testing also covers fairly mundane aspects of the car, too. The climate control is a key one. Bugatti wants to make sure that the heat and defroster systems will be functional and effective in the worst possible conditions. That way, when a customer is driving their example on a damp, cool morning to the Pebble Beach Concours, they'll be warm and can see out the windshield.Bugatti Winter Testing Might Not Just Be A Case Of Ticking Boxes While we joke about supercars like the Tourbillon never seeing any kind of inclement weather, we wouldn't be surprised if a couple do experience less-than-ideal conditions. Rimac has made it clear that he wants to drive his supercars on a daily basis, and encourages buyers to do the same.Not only that, but some high-end winter car events are gaining traction (ironically considering the driving surface). In Switzerland, an event called The International Concours of Elegance (or I.C.E.) takes place on a frozen lake outside St. Moritz. Another one called the F.A.T. Ice Race, which is sponsored by a company called F.A.T., took place in Big Sky, Montana, last year. These events attract extremely rare and expensive vehicles both new and old. So, perhaps a few Tourbillon buyers really will take advantage of the hard work put in by Bugatti's winter testing team at one of these events in the future.