The trim levels for the new model, which is hoped to help make the manufacturer a more credible premium brand, have also been confirmed.
Buyers will be able to pick from Access, Active, Allure and range-topping Feline trims. Entry-level £14,495 Access models include air-con, remote central locking, cruise control, a speed limiter, DAB radio and Bluetooth connectivity.
Active versions, costing upwards of £17,145, add a large 9.7-inch touchscreen infotainment system with sat-nav, dual-zone climate control, 16-inch alloys, an electronic handbrake and rear parking sensors.
Peugeot 308s in Allure specification, starting at £18,585, improve upon Active models further with full LED headlamps, 17-inch alloys, a reversing camera and front parking sensors.
Range-topping £20,995 Feline models feature 18-inch alloys, a panoramic glass roof, sports seats trimmed in Alcantara and a Driver Assistance Pack that includes advanced features like adaptive cruise control and an emergency braking system.
Five engine options will be offered, including a 1.6-litre HDi 120 that emits 82g/km of CO2. A 1.2-litre three-cylinder turbocharged petrol engine will also be launched in spring 2014, in 110bhp or 130bhp outputs.
Rivals like the Ford Focus, in entry-level Studio specification, start from a lower £13,995 but don't feature Bluetooth, cruise control, a speed limiter or DAB radio, unlike the equivalent Active-specification Peugeot.
Customer deliveries are expected to begin on 4 January 2014.