The 2018 Chevy Sonic will be based on an updated Gamma platform that will be shared with the all-electric Chevy Bolt. In place of that's car electric motor and massive battery pack will be either a naturally aspirated four-cylinder or small turbocharged engine. Our spy shooters suggest a three-cylinder engine is also a possibility.
While it's clear from these spy photos that the development of the next Sonic is well underway, nobody is quite sure where it will be built. Last October, we reported that 500 workers at GM's production facility in Orion Township were being laid off due in part to slow sales of the Sonic – you can thank the growing popularity of crossovers for that – and that plant is now being retooled for production of the Bolt. It's entirely possible that GM has decided to move production of the Chevy Sonic to Mexico, which would allow it to build a more profitable vehicle at Orion Township alongside the Bolt.