Those rumors of a new, C8-generation Corvette Grand Sport just got a whole lot more credible. One lucky motorist was able to shoot a short video of the aggressive sports car parked on the side of the road without any camouflage and surrounded by what looks to be a film crew, suggesting Chevrolet is preparing for the GS' debut sometime soon. Although no information is available on the car as of late, the leak is still very exciting for Corvette fans everywhere. Some Dead Grand Sport Giveaways The clearest evidence suggesting this is a new Corvette variant is visible right above the rear wheels, where equal-width diagonal hash marks reside on the fender. Those stripes have long been a signature design element of the Corvette Grand Sport, although in generations past, they were on the front fender instead of the rear. We think the move has something to do with the C8 Corvette's engine placement behind the driver.The car in question also sports four exhaust pipes mounted in the center, just like the Z06 pictured below. The wide bodywork also looks to be distinct from the standard Corvette Stingray, lending credence to the idea that we're looking at a higher-performance trim. Since its return on the C6-generation sports car, the Grand Sport trim has borrowed the bodywork and suspension package of the Z06, although with less power. That seems to be the case here.Chevrolet The Stingray Is Getting A New Engine As we've reported before, Chevrolet accidentally leaked that the Corvette family would receive a new 6.7-liter V8, codenamed LS6 and built on the sixth-generation General Motors small-block architecture. We presumed that the engine would be a natural fit for the Grand Sport, giving it better performance than the base car. However, as Corvette Blogger reports, the 6.7-liter V8 also showed up in an internal GM vehicle locator service as an option for the 2027 Corvette Stingray convertible, suggesting it'll at least be an option on the entry-level sports car, if not the only engine available period.That would align with previous-generation Grand Sports, which offered the same power as their base-model siblings despite having the handling and styling of higher-performance trims. Considering the relatively low-tech LT2 6.2-liter engine found in the current Stingray still manages to kick out 495 horsepower and 470 pound-feet of torque, we expect the LS6 engine in next year's Corvette to produce at least 540 hp and about the same amount of torque. Plan on hitting 60 miles per hour in about 2.9 seconds with the new engine.Chevrolet Some Differential Diagnoses Although the video looks legitimate, it's possible that it was enhanced by artificial intelligence to fool us into thinking we've seen a new Grand Sport. That said, there aren't many unusual artifacts in the video, with the humans in the background acting and moving very naturally.It's also possible that Chevrolet is donating the Grand Sport's hash marks to another Corvette variant entirely. The car in the video doesn't seem to be wearing unusual aerodynamics, so we doubt it's a higher-performance vehicle than the existing Z06, ZR1, or ZR1X. But that doesn't count out the possibility of another limited-edition Corvette positioned just above the Stingray.2005 - 2013 Chevrolet Corvette Convertible Still, all evidence points to this being the latest iteration of the Grand Sport, which dates back to 1963 as a motorsports-intent version of the first Corvette Stingray. The Grand Sport returned in 1996 as a swan song for the C4 generation, skipped the C5 altogether, and then came back to the C6 family in time for the 2010 model year. The C7 also offered a Grand Sport trim for the last few years of that model run, making us think that the C8 will get one soon before it's replaced by the C9 in 2030 or so.