The B-segment SUV is expected to be launched soon with pricing to be announced then.
It is offered in four variants of Standard, Executive, Premium and Flagship.
The national carmaker has yet to confirm further details about the X50's engine output but it is a 1.5-litre turbocharged three-cylinder mill.
The Standard, Executive and Premium variants will be powered by the same engine. However, the range-topper will receive a "high output" 1.5-litre turbocharged gasoline direct injection (TGDI) engine.
All variants get a seven-speed dual-clutch transmission to send power to the front wheels.
The X50 is the second all-new model after the X70 to result from the partnership between Proton and Geely.
READ MORE: Viral X50 price list is fake, says Proton
The Standard variant will come fitted with 17.0-inch wheels, full LED headlights, 8.0-inch wide and full-colour touchscreen infotainment unit with reverse camera, four airbags, fabric seats and rear air vents.
The Executive variant gets six airbags instead, leather-wrapped multi-function steering wheel, automatic headlights, front fog lights and leatherette seats.
In the Premium variant, the list of goodies expands with tyre pressure monitoring system, larger 18-inch wheels with 215/55 series tyres, driver-side powered seat, 360-degree camera system and a larger 10-inch infotainment unit.
The 1.5T TGDI Flagship will gain an Advance Driver Assistance System, dual-tone exterior and a panoramic roof on top of a more powerful engine.
The X50 comes with a fresh interpretation of the front Ethereal Bow grille with Infinite Weave pattern which is the signature styling of Proton cars today and first appeared on the X70.
Colour choices are Snow White, Armour Silver, Jet Grey and Ocean Grey along with two new colours of Citric Orange and Passion Red.
Proton will open its order books on Sept 16 with a booking fee of RM500.
The company is inviting the public to vote for one of four slogans on its official website.
It will also be holding roadshows in major towns from this weekend.