BREAKING: Lamborghini bringing out the Jota LB715-5 and the 83X

The first one would obviously be their new, 715 horsepower supercar (but what the 5 means is beyond me. Previous, 2 and 4 meant how many wheels drove the car).

The real news is the Lamborghini 83X, which was teased in the 10-porthole shot.

That, my friends, is 10 portholes, not 12. Lamborghini ain't ditching the V12 at any point in the recent future. Therefore, this is something else. This is either the production version of the Lamborghini Estoque, or a new Gallardo replacement. 

The dark horse would be that this is a new front-engined GT car looking to take on either the Ferrari 599 GTB or 612 Scaglietti.

But most likely this is the other two, and whatever this is, it will have a V10.

The other two teaser shots:

A taillight teaser.

source: http://www.egmcartech.com/2010/09/17/report-lamborghini-to-show-two-models-in-paris/