Lamborghini has a history of producing both hard top and open air variants of its supercars, and the new Aventador is no exception to this rule. Fuel economy filings with the Environmental Protection Agency (EPA) last spring revealed that a roadster version of the Lamborghini Aventador LP 700-4 was in the works, and it now looks like the car will debut at the 2012 Geneva Motor Show.

A source close to the project tells Teamspeed that the Aventador LP700-4 Roadster is ready for production, and that the actual car looks better than any artist’s renderings released to date. The official debut is said to be scheduled for next March’s Geneva Motor Show.

Earlier reports said the new Aventador LP 700-4 Roadster would likely use a manually folding carbon fiber roof, a la the Murcielago Roadster. While details are lacking, Teamspeed also alleges that the retractable roof of the Aventador Roadster will be more elegant in design than the one used on the open air Murcielago.

We’ll keep you up to date on any breaking news about the Lamborghini Aventador LP 700-4 Roadster as part of our comprehensive Geneva Motor Show coverage.