Saab is to unveil its revised 9-5 saloon and estate range at next month’s Frankfurt Motor Show. It features new front and rear styling and an updated dashboard/interior trim.

Under the bonnet the all-turbo line-up includes a new 150bhp 1.9 TiD diesel, a Saab BioPower engine that can run on a mixture of bioethanol fuel and petrol (E85), and increased power for the top-of-the-range 260bhp Aero 2.3 HOT model.

Full details of the refreshed Saab 9-5 range will be available following the model's Frankfurt debut on September 12. UK deliveries will start in November.