Power is now claimed to be 250bhp at 440 rpm. Under the bonnet, an alternator is fitted in lieu of a dynamo; the road springs are not as stiff as those on the 408 and the ride is softer. There is a lever-operated parking lock fitted to the transmission rear drive shaft; this must be disengaged before selecting gear and moving off. The rear axle also has a slightly higher gearing ratio. A heated rear window was now fitted as standard.

Price new £4,849 Compression 9:1 Capacity (cu.in.) 318 Capacity (cc) 5,211 Length 16' 1½" Width 5' 8" Height 4' 11" Weight (cwt) 32½ Top Speed 132 Consumption (mpg) 15-21