I wouldn't jump to conclusions on the engine's output just yet. The car is still new and the engine may not be fully broken in. The same is true for the transmission, until the gears are broken in the frictin losses through the transmission will be higher.

Drive the car a few thousand miles and then dyno again, you may see slightly higher numbers.

I feel sorry for the people who don't drink. When they wake up in the morning, thats the best they're going to feel all day - former President Lyndon B. Johnson