Renault, Nissan and Daimler will focus on small and energy-efficient passenger cars in their newly-announced partnership, the chief executives of the companies said Wednesday.

“We’ve made significant changes already,” Daimler CEO Dieter Zetsche said. “We’re making use of small engines, which will allow us to be more cost efficient. We’re implementing specific projects, and we’re already in the segment. Demand for premium small cars growing.”