Back in March, PSA Peugeot Citroën and General Motors formed an alliance that saw the US carmaker buy a 7% stake in PSA for over $400 million. Now it has been announced that the companies will co-develop four vehicle projects as part of their alliance.

The projects will include a joint program for a compact MPV for Opel/Vauxhall and a compact SUV/crossover for the Peugeot brand, a small car to be shared between Opel/Vauxhall and Citroen, an upgraded low CO2 small car segment platform for next-gen Opel/Vauxhall and PSA cars and a joint program for mid-size cars to be used by both parties.

The automakers said they aim to launch the first vehicles on these common programs by the end of 2016.

“All four projects will be developed combining the best platform architectures and technologies from the alliance partners,” GM and PSA said. “Beyond this, PSA and GM are currently sounding out whether to extend the cooperation potentially to other fields,” GM added in a statement.

Besides the joint programs, PSA and GM’s Europe division will continue to develop a joint purchasing organisation aimed at achieving $2 billion annual savings within five years. Click here to read our previous post on this marriage.