Renault upgraded the Megane lineup in 1999, preparing it for the Euro 3 emission standards, and included the open-top version in the process.
The first generation of the Megane was a huge success, and it was one of the cars with the most extensive body versions ever made. Renault built it as a coupe, a convertible, a five-door hatchback, a sedan, a station wagon, and a minivan.

Along with the enhanced version, the Megane Cabriolet received a revised front fascia. Its grille featured larger vents. Its tear-shaped headlights with clear turn signal lights looked similar to those from the rest of the Megane range. The bumper featured a lower grille with horizontal and vertical slats. Apart from the body-colored door handles, the design team finished its job before it reached the back of the car, which remained unchanged.

The cabin received four seats, but the owner could have used only the front ones for passengers. Due to the short wheelbase and the pushed-forward rear bench, there was no legroom in the back. A profiled tonneau cover protected the manually operated fabric roof away from the sun.

Under the hood, Renault installed a choice of gasoline engines ranged between 95 hp and 150 hp, carried over from the coupe. It paired them with five-speed manual transmissions only.