The new model replaces the current LP700-4 as the core offering in the Aventador line.
Behind the driver and passenger is the company's naturally aspirated dry-sump 6.5-litre V12 engine. The motor has been retuned to deliver an extra 34kW of power, with the V12 now sporting 544kW at 8400rpm, and 690Nm of torque at 5500rpm.
Coupled with standard all-wheel drive and a seven-speed independent shift rod transmission, the Aventador S, which has a dry weight of 1575kg, has a claimed 0-100km/h time of 2.9 seconds.
From there it can hit 200km/h by the 8.8s mark, and 300km/h within 24.2 seconds. Top speed is said to be 350km/h.
For Aventador S, Lamborghini has revised the styling and aerodynamics of the coupe.
Up front, there's a redesigned front spoiler featuring a longer splitter. Along with modified intakes, the reworked front end is said improve air flow into the engine and radiators, and reduce interference for the wheels.
The rear bumper is new, and incorporates revised tail-lights that are linked via a grey element, and a completely redesigned diffuser with vertical fins that are said to reduce drag and generate more downforce.
Also new is a lighter exhaust system, which terminates at three tips that are capped with a hexagonal surround.
Perhaps the most significant change has been the adoption of four-wheel steering. The setup includes two actuators that can react within five milliseconds to steering inputs.
Like most other four-wheel steering systems, the Aventador's turns the rear wheels in the opposite direction to the front wheels at low speeds to reduce the turning circle and improve agility, while at high speeds the rear wheels turn in concert with the front wheels to increase stability.
The Aventador S rides on 20-inch alloys with 255/30 Pirelli P-Zero tyres up front, and 21-inch rims with 355/25 rubber at the rear.
An EGO driving mode has been added, and allows the driver to mix and match the existing Strada, Sport and Corsa settings for different sub-systems, including the suspension, traction management and steering.
The Aventador S is priced from $788,914 before on-road costs. The new Aventador S will begin entering customers' driveways from the second quarter of 2017.