Image Credit: TK's Garage / Instagram.Dodge has made it clear that the new Charger lineup still has room to grow, and a recently surfaced spy video may offer an early look at what comes next. Footage circulating on social media appears to show two unfamiliar Charger prototypes, including one carrying a particularly interesting SRT reference.The video, posted by TK's Garage on Instagram, provides only a brief look at the cars from the front. Even so, both appear noticeably different from the Charger models currently available, with changes that could point toward higher-performance variants under development.One of the cars looks relatively close to production, sporting what appears to be a revised front fascia, larger wheels and tires, and a generally more aggressive appearance. The second is harder to identify, but a windshield sticker reading "Powered By SRT" has understandably attracted plenty of attention.AdvertisementAdvertisementNone of this confirms that Dodge is preparing to reveal a Charger SRT, however. Manufacturers regularly use prototypes and development vehicles to evaluate components, meaning the cars in the video could represent anything from future production models to experimental test vehicles.Two Mysterious Charger Prototypes AppearThe first Charger shown in the footage appears to retain much of the production car's overall design while introducing subtle changes around the front end. Its wider-looking stance and more substantial wheel-and-tire package suggest Dodge could be testing a performance-focused version of the car.The second vehicle is arguably the more intriguing of the pair. It appears to feature a different grille treatment and an unusual exterior finish, although the limited footage makes it difficult to determine whether the latter is production paint, camouflage, or simply a temporary wrap.Then there is that "Powered By SRT" windshield sticker. While it certainly adds fuel to the speculation, a sticker on a development vehicle is not enough to establish that the car will become a production SRT model.Dodge Has Already Hinted At More PerformanceA hotter Charger would hardly come as a surprise. Dodge CEO Tim Kuniskis has repeatedly discussed the possibility of expanding the new generation's performance offerings, including comments that have kept speculation about a V8-powered Charger and even another Hellcat alive.AdvertisementAdvertisementThe current gasoline-powered performance flagship is the Charger Scat Pack, which uses the high-output version of Stellantis' twin-turbocharged 3.0-liter Hurricane inline-six. The engine produces 550 horsepower and 531 lb-ft of torque, giving the new Charger considerable performance even without a V8 under the hood.An SRT version would presumably need to push the formula considerably further. Whether that means extracting additional power from the Hurricane engine, introducing another powertrain entirely, or bringing a V8 back into the equation remains unknown.Is The Charger SRT Really Coming Back?SRT has long represented the most serious performance machinery within Dodge's lineup, making the possibility of a new Charger wearing the badge particularly significant. A revived SRT model could also help answer enthusiasts who remain unconvinced by the new Charger's transition away from the familiar Hemi-powered formula of its predecessor.Still, the available footage leaves far more questions than answers. Neither prototype is shown in enough detail to identify its powertrain, and Dodge has not confirmed that either vehicle represents an upcoming SRT production model.AdvertisementAdvertisementFor now, the video is best viewed as another clue that Dodge may have bigger plans for the Charger. The cars certainly look promising, and a prototype carrying an SRT reference is difficult to ignore, but enthusiasts will have to wait for something official before declaring the return of the Charger SRT.If you want more stories like this, follow Guessing Headlights on Yahoo so you don't miss what's coming next.