Surprisingly, it's the most powerful engine ever to be used on a production Peugeot. Equipped with a particle emissions filter (PEF) and compliant to Euro 5 standards, the V6 diesel that is linked to a six-speed sequential automatic gearbox launches the four-seater coupe from 0 to 100km/h (62mph) in 7.7 seconds and on to a top speed of 240km/h or 149 mph.
Even though power is increased by 18 percent over the 2.7-liter V7 HDi, Peugeot claims a 15 percent reduction in fuel consumption announcing a combined figure of 7.2 lt/100km (32.7 mpg US or 39.2 mpg UK) with CO2 emissions of 189g/km instead of 225g/km on the previous model.
The second new diesel engine for 407 Coupe is the 2.0-liter four-cylinder HDi that is coupled to a 6-speed manual gearbox and develops an output of 163HP and 340Nm of torque compared to 136HP and 320Nm of the previous 2.0L diesel. With this powertrain, the 407 Coupe accelerates from standstill to 100km/h (62mph) in 9.1 seconds and achieves a maximum speed of 220km/h or 137mph.
On average, the 407 Coupe 2.0 HDi consumes 5.2 liters of diesel per 100 km which comes to around 45.2 mpg US or 54.3 mpg UK.
For the 2010MY range, all 407 Coupe models benefit from newly designed door mirrors, chrome trimming on the upper section of the side windows and all-new navigation system.