The 2026 Dodge Charger Sixpack R/T is heavier than a Mazda CX-90, and the four-door muscle car has a slightly lower top speed too. The 420-hp Charger we tested tipped our scales at 4921 pounds, which is 25 pounds heavier than Mazda's three-row, eight-passenger SUV. While the six-cylinder sedan is a lot quicker to 60 mph, its top speed is limited to 125 mph, whereas the CX-90 we tested tops out at 127 mph.