Two engines are available in the Peugeot 308 GT. The most powerful option is a 1.6-litre petrol THP engine fitted with a twin-scroll turbocharger. It produces 202bhp and 210lb ft, and can reach 62mph in 7.5 seconds with a top speed of 146mph.
Equipped with this engine, and a six-speed manual transmission, Peugeot claims the 308 GT is capable of averaging 50.4mpg on the combined cycle. CO2 emissions are rated at 130g/km.
Also available is a four-cylinder 2.0-litre BlueHDI diesel with 178bhp and 295lb ft. CO2 emissions are 103g/km and an average fuel consumption of 70.6mpg is claimed. The diesel option comes with an automatic transmission, and takes 8.4 seconds to reach 62mph. It has a top speed of 136mph.
The French firm has also retuned the standard 308's suspension – which uses a MacPherson setup at the front and a torsion beam at the rear – for reputedly sportier handling. The ride height has been lowered by 7mm at the front and 10mm at the rear.