Engaging sport mode basically encourages the car's powertrain to favor acceleration and power over fuel economy and smoothness. For instance, if you are accelerating from a stop in sport mode, the car will hold each gear a bit longer than it would in regular mode. This helps the engine reach its maximum power output, which, for your car, falls roughly between 4000 and 6000 RPMs.
Fuel economy will likely suffer somewhat when using sport mode because the engine will spend more time at higher RPMs than it would in regular mode at the same speeds.
Yeah, except again real world tests have shown the 6 and 8 speed DCTs actually result in *better* performance. BMW was ready to kill the manual in the M5 precisely because the DCT automatic they wanted to fit was *faster* in every possible way and it got better fuel economy while doing it.
“If you want a dog with no acceleration then the modern auto trans are better fuel economy.”
Get real. A Dodge Ram does 0-60 in 7.5 seconds. That’s faster than 95% of most cars on the road today.