Porsche released the details of the 992's first powertrains as part of the model’s debut. Both the Carrera S and Carrera 4S – the first two members of the next-generation 911 family – feature twin-turbocharged 3.0-liter flat-six engines. We knew from the debut that both models would have 443 horsepower on offer, but we can now report that there’s 390 pound-feet of torque, as well. All told, there's 23 horsepowers and 22 lb-ft of torque more than the current Carrera S. Despite these modest gains (relative to 400-plus-horsepower sports cars), the new 911 is much more potent. The sprint to 60 miles per hour takes just 3.5 seconds for the Carrera S and 3.4 seconds for the all-wheel-drive variant – grab the Sport Chrono Package, and those figures fall to 3.3 and 3.2 seconds, respectively. The top speed, meanwhile, is 191 mph for both variants. Porsche calls the 992's engine “new,” but really, its official name gives away its modified nature – the 9A2 Evo. Based on the...