The 2018 Lamborghini Aventador S Roadster redefines supercar exhilaration with its naturally aspirated 6.5-liter V12 engine producing 730 horsepower, paired with cutting-edge chassis upgrades that make it as agile as it is ferocious.This open-top beast delivers a sensory overload, from its thunderous exhaust to its razor-sharp handling, setting it apart in the hypercar elite.
Design and Aerodynamics: Aggressive Evolution
Lamborghini’s designers sculpted the Aventador S Roadster with sharper angles and stealth-like geometry, featuring scissor doors and a low-slung profile that commands attention. The roadster variant swaps a fixed roof for a lightweight two-piece removable hardtop, each panel weighing around 13 pounds, stowed in the frunk despite limited 4.9 cubic feet of space. This setup prioritizes drama over practicality, turning heads with its pearlescent finishes and intricate carbon fiber accents.
Aerodynamic enhancements include larger air intakes, an active rear wing generating 130% more downforce, and refined rear wheelarch treatments inspired by the iconic Countach. These changes improve high-speed stability by 50% while maintaining the car’s visual ferocity. The result is a machine that slices through air with precision, balancing form and function in true Lamborghini fashion.
Powertrain: V12 Symphony Unleashed
At the heart lies the 6.5-liter (6498 cc) DOHC V12, revving to 8,400 rpm for 730 hp and 509 lb-ft of torque at 5,500 rpm. This naturally aspirated powerhouse propels the roadster from 0-60 mph in an estimated 3.0 seconds, quarter-mile in 10.8 seconds, and a top speed of 217 mph—all through a 7-speed automated manual transmission and all-wheel drive.
Independent testing confirms its brutal acceleration, with the open-air setup adding just 110 pounds over the coupe, barely denting performance. Full-throttle runs above 5,500 rpm produce a howling crescendo that echoes off landscapes, captivating onlookers and drivers alike. Fuel economy lags at 10/16 mpg city/highway, but efficiency takes a backseat to raw emotion.
Chassis and Handling Innovations
The Aventador S Roadster introduces rear-wheel steering, operational at low speeds for tighter turning radii (mimicking a shorter wheelbase) and at high speeds (above 65-80 mph) for enhanced stability and sharper turn-in. Combined with variable-ratio front steering (10:1 to 18:1), it shrinks the car’s 79.9-inch width for canyon carving.
Hydraulic power steering delivers precise feedback, contrasting electric systems in rivals. The rigid chassis, bolstered seats hugging driver and passenger low to the ground, and massive brakes ensure confidence-inspiring control. Even on tight roads suited for smaller cars, the Roadster threads needles with poise.
| Spec | Roadster | Coupe |
|---|---|---|
| Power | 730 hp | 730 hp |
| 0-60 mph | 3.0 sec (est.) | 2.9 sec |
| Top Speed | 217 mph | 217 mph |
| Curb Weight (est.) | 4,200 lb | 4,090 lb |
| Base Price | $467,442 | $424,845 |
Data sourced from manufacturer and independent tests.
Interior and Everyday Usability
Entry is drama-free: scissor doors swing upward, allowing a simple step into Alcantara-wrapped, highly bolstered buckets that position occupants nearly at sill level. The cockpit feels fighter-jet intimate, with digital displays and fighter-style controls, though some note dated switchgear and a occasionally jerky 7-speed transmission.
Cargo is minimal at 5 cu ft, and the removable roof isn’t for long hauls—it’s parked securely but consumes frunk space. Comfort modes soften the ride, but this prioritizes track-day thrills over daily duties. Audio-visual drama peaks with the top off, amplifying the V12’s roar.
On-Road Performance: Thrills Amplified
Highway blasts feel like teleportation, with all-wheel drive gripping relentlessly. Twisty roads reveal the rear-steer magic: low-speed parking becomes effortless, high-speed sweepers precise. The Roadster’s width (106.3-inch wheelbase, 188.9 inches long) belies its agility, turning canyon runs into grin-inducing spectacles.
Braking is transformative, hauling the 4,200-pound mass from triple-digit speeds with authority. Strato mode unleashes full fury, while everyday settings tame the bull for public roads. Reviewers report muscle-straining smiles from the unrelenting drama.
Ownership Considerations: Price and Practicality
Starting at $467,442, plus options pushing toward $500,000, it’s for the elite. A 3-year warranty covers basics, but maintenance on a 730-hp V12 demands deep pockets. Resale holds strong for low-mileage examples, but it’s no commuter—expect 12 mpg combined.
- Pros: Unmatched V12 soundtrack, revolutionary handling, visual impact
- Cons: Limited storage, thirsty engine, high cost
- Best for: Collectors seeking theater-on-wheels
Competitor Landscape
Against the McLaren 720S Spider or Ferrari 488 Spider, the Aventador S Roadster stands alone as the sole mid-engine V12 convertible. Turbo rivals offer refinement, but none match its analog fury and scissor-door swagger.
Frequently Asked Questions (FAQs)
Is the 2018 Aventador S Roadster faster than the coupe?
Negligible difference: 3.0 sec 0-60 vs. 2.9 sec, same 217 mph top end.
How does rear-wheel steering work?
Opposite-phase at low speeds for agility; same-phase at high speeds for stability.
What’s the fuel economy?
EPA: 10 city/16 highway/12 combined mpg.
Can the roof be driven with?
Yes, two-piece hardtop installs easily but stores in frunk only.
Is it street-legal everywhere?
Yes, compliant in major markets with proper emissions.
Final Verdict: Performance Art Masterpiece
The 2018 Lamborghini Aventador S Roadster transcends transportation—it’s a rolling symphony of power, sound, and presence. For those who can afford it, it delivers endless thrills, proving open-top V12s remain automotive royalty.
References
- 2018 Lamborghini Aventador S Roadster First Drive Review — MotorTrend/Chris Walton. 2018-04. https://www.motortrend.com/features/2018-lamborghini-aventador-s-roadster-first-drive-review
- 2018 Lamborghini Aventador S Roadster First Drive Review — Car and Driver. 2018. https://www.caranddriver.com/reviews/a19798490/2018-lamborghini-aventador-s-roadster-first-drive-review/
- 2018 Lamborghini Aventador S Roadster Review — 95Octane. 2018-04-29. https://95octane.com/2018/04/29/2018-lamborghini-aventador-s-roadster-review/
- 2018 Lamborghini Aventador S Roadster Specs — Kelley Blue Book. 2018. https://www.kbb.com/lamborghini/aventador/2018/s-roadster-2d/
- Lamborghini Aventador S Review — Evo. 2021. https://www.evo.co.uk/lamborghini/aventador-s

