Rumors have been spread about Lamborghini getting ready for the presentation of the new roadster version of the Aventador LP700-4 this fall. Now a member of the Teamspeed forums with the nickname “D55L” claims to have received a special invitation for the U.S. launch of the car on Monday, November 12th in Miami Florida.

The invitation is titled “Our most powerful roadster ever. The excitement is sky high” which then continues to say that the Aventador LP700-4 Roadster is “crafted from an ultra-rigid carbon fiber monocoque for strength with light weight” and will be powered by the same 691hp (700PS) 6.5 liter V12 linked to an all-wheel drive system found in the coupe.

The forum member also stated in the posting that the open-top Lamborghini will make its world premiere at the 2012 LA Auto Show at the end of the month. Clearly, we will have to wait and see if the invitation is real or not.

According to other rumors, the V12-powered Aventador Roadster will likely be equipped with a retractable hardtop made of lightweight materials, similar in style to those employed by the McLaren MP4-12C Spider and Ferrari 459 Italia Spider.Image courtesy of SKGT3RS