The Peugeot 508 Fastback will cost from £25,000 when it goes on sale.
First deliveries should commence in October.
The new four-door sports coupe will be available with a range of petrol and diesel engines, covering 130 to 225PS.
The most frugal model at launch emits 98g/km of CO2.
It comes equipped with advanced driver assistance systems, including a new night vision system, which is new to the segment and uses an infrared camera with the ability to detect pedestrians at night and in cases of reduced visibility.
A plug-in hybrid powertrain is expected to be added in 2019.