The Frankfurt motor show to be held in September will be a platform for major automakers to unveil or showcase their upcoming, new or updated models. Carmakers to be present at the show include Mercedes-Benz, BMW, Bentley, Porsche, Jaguar, Audi, Ferrari and Lamborghini. Here's what to expect at the upcoming motor show:

Alfa Romeo Giulia - This BMW 3-series' rival made its debut in June this year, and is expected to be showcased at the event. Alfa has only revealed that the car is to be powered by a Ferrari-sourced twin-turbo V6, though more information could be disclosed at the motor show.

New Audi A4 - Audi debuted its new A4 earlier this year. The next-gen car is larger and lighter than its predecessor and gets a range of new or updated engines making the car more powerful and efficient.

Audi e-tron Quattro concept - The concept is expected to be a precursor of the all-new Q6 electric SUV that is likely to launch internationally sometime in 2018.

Bentley Bentayga - Bentley has released teasers for this upcoming super-luxury SUV, therefore the carmaker is expected to showcase the production version of the Bentayga SUV at the event.

New BMW 7-series - Revealed earlier this year, the international launch of the 7-series is expected in a few months.

New BMW X1 - The new X1 will be offered in both front-wheel drive and all-wheel drive in international markets. The new car is based on the UKL platform that underpins BMWs sister brand Mini, resulting in the new car getting an altered silhouette.

Ferrari 488 Spider - Ferrari has revealed its most powerful mid-engined convertible yet. It gets the same features and options as the standard 488, with the addition of a folding hard-top. To be unveiled at the motor show, the 488 Spider is powered by the same 660bhp twin-turbo V8 as on the standard model.