I’m going to be taking my QP on a trip to Chicago and back from Toronto in May, which is a bit over 1000 miles round trip. I was curious if anyone has tested the fuel consumption in sport mode compared with regular for highway driving/cruising at speed? I pay attention to the mileage out of curiosity and see 10-13 in the city and 19 was the best on the highway recently. I’m not really a conservative driver in the car, taking advantage of tunnels and curves and passing opportunities with glee. I’m more curious whether the theoretical easier breathing exhaust would make a difference in sport mode.