Watch CNBC's full interview with General Motors CEO Mary Barra

General Motors CEO Mary Barra joins 'Squawk Box' to break down the company's combustion and electric vehicles lineup and provides an outlook for the U.S. economy in 2023. Barra also weighs in on the incentives provided to electric car makers under the Inflation Reduction Act and more. "We're investing in the United States, and we're investing in the economy," Barra tells CNBC.