GM confirmed this week that they will design and build a 40 MPG Chevrolet compact car. This was part of its the General Motors announcement about product strategy upcoming changes. Production is set to start in mid-2010.This next-generation compact will be equipped with a 1.4-liter turbocharged version of GM’s global four-cylinder engine. It said the new Chevy should achieve about a 9 MPG improvement over Chevy’s current compact model. They didn’t specify the exact fuel economy that the new compact will get, but they promised that it will acheive at least 40 MPG on the highway — not bad for a non-hybrid car.