2016 Dodge Viper ACR | The Most Powerful Factory Viper Ever Built

The 2016 Dodge Viper ACR is the definitive answer to what the Viper program could produce when Dodge's SRT engineers were given full authority and no budget constraints on track performance. It is a production car that set the lap record at 13 race circuits, generates more aerodynamic downforce than a first-generation Cup car, and uses a transmission that requires a human left leg to operate. In 2026, nine years after production ended, it trades above its original sticker price.

The ACR designation — American Club Racer — was applied to multiple Viper generations, but the 2016 version represents its apex. For the full story of how the ACR designation evolved across generations, see the complete Dodge Viper history guide.

2016 Dodge Viper ACR Engine | 8.4L V10, 645HP, No Turbo

The ACR uses the same engine as the standard 2016 Viper: a 8.4-liter all-aluminum naturally aspirated V10, but revised for 2016 to produce 645 horsepower and 600 lb-ft of torque, up from 640 hp in the 2013–2015 models. The engine uses a dry-sump oiling system that keeps oil pressure consistent under extreme cornering loads and allows the engine to sit 1.5 inches lower in the chassis than a wet-sump design would permit.

No turbocharger. No supercharger. No electric motor assistance. Every one of those 645 horsepower comes from displacement and engine speed, with the V10 revving to 6,200 RPM. The power delivery is linear from idle to redline, which makes the ACR easier to manage at the limit than a turbocharged car whose power arrives in a surge. The Tremec TR-6060 6-speed manual is the only available gearbox, with no automatic option ever offered on any Viper ACR.

Extreme Aero Package | 1,750 Lbs of Downforce

The ACR is available in two aero configurations. The standard ACR comes with a modest front splitter, side sill extensions, and a small rear wing. The Extreme Aero Package transforms it into something else entirely.

The Extreme Aero kit adds a massive two-element adjustable rear wing, extended front dive planes, a full-length front splitter, and a rear diffuser. Combined, these elements generate over 1,750 lbs of downforce at top speed, a figure that exceeds the car's own weight on the front axle at track speeds. To put this in context: a NASCAR Cup car at superspeedway speeds generates approximately 2,500 lbs of downforce from a car weighing over 3,400 lbs. The Viper ACR Extreme achieves roughly 52% of that from a street-legal car using passive aerodynamics alone.

The downforce does come at a cost to top speed. The Extreme Aero Package reduces the ACR's top speed from around 206 mph (standard aero) to approximately 177 mph, as the drag generated by the wing at high speed becomes limiting. On a road course, the trade-off is entirely worthwhile. The car simply cannot run out of mechanical grip in corners when it has 1,750 lbs of aerodynamic load pressing it into the asphalt.

Nurburgring Record | 7:01.3 and 13 Circuit Lap Records

Dodge tested the ACR at 20 race circuits across the United States and Europe. It set the production car lap record at 13 of those 20 circuits. The most significant was the Nurburgring Nordschleife, where the ACR posted a 7 minutes 01.3 second lap on September 4, 2016. At the time, this was the fastest lap ever recorded by a production street-legal car at the Nordschleife.

Other records included Laguna Seca, Road Atlanta, Virginia International Raceway, Road America, and Lime Rock Park — circuits with very different character. The ACR was faster than contemporary Porsche 911 GT3 RS and McLaren 675LT variants at most of these tracks, cars that cost two to three times the Viper's price. The ACR's MSRP at launch was approximately $122,000 to $135,000 depending on options. A 911 GT3 RS started around $187,000 at the same time.

Suspension and Tire Setup

The ACR rides on Bilstein two-way adjustable coilover dampers with 16 compression and 16 rebound settings each, allowing for 256 different damper combination settings. The suspension geometry was developed specifically for track use, with camber and caster settings that work best on smooth tarmac rather than public roads.

The standard tire fitment is Pirelli P Zero Trofeo R, a semi-slick that qualifies as street-legal in most jurisdictions but was designed for track use. Front: 295/25ZR19. Rear: 355/30ZR19. These are not tires that wear gracefully on daily commutes. A rear set lasts approximately 3,000 to 5,000 street miles, and less than that if the car is tracked regularly.

Rarity | How Many Were Built

Dodge never published official ACR production numbers broken down by variant, a practice that was common among manufacturers who wanted to maintain collector mystique without committing to exact figures. What is documented: total 2016 Viper production across all variants was less than 800 units.

The ACR represented a portion of that total, and within the ACR production, those with the Extreme Aero Package were a minority. Dealer allocation records and VIN registries assembled by enthusiast communities suggest approximately 200 to 280 ACR Extreme examples were built for the 2016 model year, with a similar number of standard-aero ACRs. The 2017 model year ACR carried forward with minor changes, adding to the total pool of late-generation ACR cars.

Finding an Extreme Aero ACR for sale at any given moment is genuinely difficult. Search major collector car auction platforms and you might find two to five examples available nationally, often with significant mileage from track events. Clean, low-mileage Extreme Aero examples with original documentation appear at auction several times per year but rarely more than a dozen times annually across all channels.

Current Value | What a 2016 ACR Sells for in 2026

The 2016 Viper ACR has appreciated meaningfully since Dodge ended Viper production after 2017. The elimination of the car with no announced replacement, combined with the distinctly analog character of the 8.4L V10 and 6-speed manual, has driven collector demand upward among buyers who understand that the ACR represents a type of driving experience that will not be replicated.

The premium for Extreme Aero cars over standard-aero ACRs reflects two things: the wing is visually distinctive and commands attention, and cars with confirmed track records and original Extreme Aero documentation are increasingly rare as some owners have swapped wings or lost original paperwork. Provenance matters significantly in this market.

Colors affect value. Viper Red with black ACR stripes is the most recognizable configuration and typically commands a small premium. Bright Blue Pearl and Sublime Green examples are also popular. Plain white or silver ACRs, less emotionally evocative at auction, typically sell at the lower end of each mileage band.

The Case for the ACR as a Collector Car

The argument for the 2016 ACR as an appreciating collector asset comes down to irreplaceability. Dodge confirmed in 2024 that the Viper has "reached the end of its lifecycle." SRT chief Tim Kuniskis, speaking on The Drive's DriveCast podcast in 2026, stated that any future Viper would likely require an automatic transmission because modern power levels exceed what a clutch-based manual can physically handle quickly enough. That statement, if accurate, means that if a Viper ever does return, it would be a fundamentally different car from the one that ended in 2017.

The ACR therefore represents the end of a specific lineage: the naturally aspirated American V10 with a manual gearbox and enough aerodynamic grip to embarrass purpose-built track cars from manufacturers who charge twice the price. There is nothing coming to replace it. The full news on Dodge's decision not to revive the Viper is covered in the Dodge Viper discontinuation report.