Revealed at the 2019 Frankfurt Auto Show last month, the limited-edition Lamborghini Sian marks the start of a new era for the Italian automaker. It's Lamborghini's first-ever hybrid supercar, powered by the automaker's signature V12 and 48V hybrid system producing a combined 819 horsepower. While Lamborghini has said the next-generation Aventador won't adopt the Sian's striking styling or revolutionary lithium-ion supercapacitor, it will almost certainly be a plug-in hybrid with a lithium-ion battery.

According to a post by a member of the McLaren Life Forums, Lamborghini is planning to give the current Aventador a special send-off with a new limited-edition model before the flagship supercar gets electrified. It will allegedly be called the Aventador SVR as a throwback to the one-off Miura SVR and will be the last ever version of Lamborghini's flagship supercar to utilize a naturally aspirated V12 without any electrical assistance.

While the model name and details haven't been verified by Lamborghini, the forum member claims they already have an Aventador SVR on order and has already taken it for a test drive.

Apparently, the Lamborghini Aventador SVR will be so hardcore that it won't be street legal and can only be tamed on a race track. Production of the Aventador's swansong will reportedly be limited to just 40 units, while customer deliveries are said to start in 2021.

As for the powertrain, the forum member claims the Aventador SVR's V12 has been uprated to 830 horsepower – that's 70 more horses than the already-hardcore Lamborghini Aventador SVJ. Chances are the Aventador SVR will also have some aggressive aero upgrades to complement the power boost. If these claims are true, the Aventador SVR will be the ultimate swansong for Lamborghini's flagship supercar. It's just a shame we probably won't see any of them out on the road.