If you remember, the Mercedes SLS AMG advertisement from 2010 showed Formula One legend Michael Schumacher performing a 360-degree tunnel loop in the supercar. Now though, a Chinese brand called Voyah has replicated that test with its fastback SUV, the Passion S.Car companies come up with innovative ways to promote their vehicles by performing unbelievable stunts, showcasing what their products are capable of. While no customer would ever try performing a 360-degree tunnel loop stunt in a fast car, hopefully, the test simply exhibits the capabilities of the vehicle.Videos of the stunt involving the Voyah Passion S went viral on the internet after the SUV was driven on the walls of a tunnel and landed back on all four wheels, proving what it could do. According to a report by Car News China, Voyah officially announced that the Passion S had completed the test successfully, meaning the company gave itself full marks for it.AdvertisementAdvertisementThe automaker confirmed on Chinese social media on August 13 that a real car was used in the stunt, ruling out the use of special effects, and claimed that it was the first production vehicle in the world to have completed the stunt. Another video of a failed 360-degree tunnel loop test was also doing the rounds, which shows a camouflaged Passion S similarly entering the loop but failing to carry the momentum onto the second ramp, crashing back onto the road on all four wheels.The Voyah Passion S is offered in two variants with a healthy amount of power, which helped pull off this stunt with flying colors. The rear-wheel drive variant comes with a single motor that produces peak power of 300 kW (402 hp). The other variant is AWD, since it comes with a dual-motor setup. The motor at the front produces 175 kW/235 hp, while the rear produces 300 kW/402 hp. Paired together, the motors make 475 kW (637 hp).Through the 360-degree tunnel loop test, Voyah accomplished what no other brand has managed to achieve, although Mercedes did something similar with the SLS AMG, the truth is slightly hazy when it comes to the authenticity of the stunt. While footage shows seven-time F1 world champion Schumacher driving away in the SLS AMG for the stunt, contemporary reports indicated that the stunt footage involved a test driver and that Schumacher's appearance was edited into the commercial. Other sources, however, reported the stunt itself was performed without special effects.Image Credit: Voyah / YouTubeAdvertisementAdvertisementMercedes reportedly filmed real driving footage in and around the tunnel. But the rumors suggest that the part where the SLS travels around the tunnel and ends up upside down was digitally created, according to B.Z. Berlin. So an automaker from China pulled off the stunt without the use of special effects, while Mercedes had to reportedly alter the video digitally for the marketing campaign? That sounds like a bombshell conclusion a car show like Top Gear would end on.