Hello budding designers! By now we're sure you're hard at work on your Proton Design Competition 2014 entries and your vision of a Proton city car for 2020. While you guys are doing that, here's a look at some of the concept cars Proton has done before.

Visitors to the Kuala Lumpur International Motor Show (KLIMS) in 2010 will surely remember Proton's Pahlawan concept cars, and in particular the Proton Tuah. Presaging the Proton Preve, the Tuah showcased many of the design features that eventually featured on the C-segment sedan.

These included the broad "Proton Wings" grille, swept-back projector headlights with integrated LED daytime running lights, prominent bulging wheel arches and a rising character line echoed by a light line at the bottom.

A surprise at the same show was the Proton Lekiu concept, which reimagined the Proton Exora as a crossover of sorts. While the front end looks much the same as the Exora's save for new headlights and front air intake configuration, the rear was shortened and featured a completely new design with tall L-shaped LED tail lights. Grey protective cladding goes around the car, giving it a more macho look.

Of course, no recount of Proton's concepts would be enough without the Proton EMAS city car, arguably the company's most famous concept and the closest in format to the competition's design brief. Designed by ItalDesign Giugiaro and showcased at the 2010 Geneva Motor Show, the car featured a reinterpretation of Proton's corporate look, the "Proton Wings" grille flanked by narrow slit headlights.

The side profile was dominated by a steeply-diving belt line which surely gave the EMAS good frontal visibility and an airy interior feel. This is followed by a similarly steep character line, while a kink in the C-pillar added some pizzazz to the design. The large rear windscreen integrated the tail lights, which made the EMAS look classier and more sophisticated.

Think you can do better? Then enter the Proton Design Competition 2014 with your vision of a Proton City Car for 2020. Stand a chance win prizes worth a total of RM58,000 including cash rewards, MacBooks, an internship at Proton's R&D Creative Design Centre and even getting your design immortalised as a quarter-scale model displayed at the Proton Gallery.

Visit Proton's Facebook page for contest details, terms and conditions. And if you are interested, better hurry – submissions close August 11, 2014!