It makes just 10hp more. Uses about 8% less gas.
Let's hope it's also a lot smoother and quieter than the current engine. Which sounds too much like a diesel.
Many blame Direct Injection for this. But GM and Ford also have 2.0 Liter turbo engines with direct injection. And they are always very smooth and quiet.
Here is a list of the changes to the engine:
Engine weight has been reduced by eight pounds, to 290 pounds overall. Among the improvements on this engine are: a thinwall crankcase casting; exhaust headers that are integrated into the cylinder head; smaller diameter main bearings; roller bearings for the twin balancer shafts; and a crankshaft that has four counterweights instead of eight.