You hear the term "one of one" a lot in the classic car realm. It is meant to indicate the utmost rarity in a vehicle with an extremely limited production run. In contemporary cars, other notable examples include a one-off Bugatti Veyron, or the Ferrari P4/5 commissioned by James Glickenhaus.

Here is another supercar that can count itself among the club: the 2012 Mosler RaptorGTR. The RaptorGTR was actually not intended to have a single-unit production run, but according to the press release, "Unfortunately Mosler was pulled into the vortex of the financial downturn and only produced one of its latest products."

Unfortunate indeed, because the world needs more 838-horsepower 7.0-liter V8 supercars. With a curb weight of 2580 pounds, the RaptorGTR has a 649 horsepower-per-ton ratio. Mosler is quick to point out that, while Bugatti boasts 1200hp in the Veyron SuperSport, the car also carries a 4545-lb curb weight, resulting in a 528 horsepower-per-ton ratio.

The press release also points out that the RaptorGTR builds on the legacy started by previous Mosler products, such as the MT900R, which has "the highest percentage of podiums/start of any manufacturer in FIA sports car racing."

So what will this one-off performance exotic cost? Supercar Engineering, which developed the RaptorGTR, and owns the distribution rights, says $700,000. The interior can be customized to suit the buyer's whim, but it remains unclear if said customization is included for that price. We doubt it. The vehicle is also being marketed in Russia, UAE and Saudi Arabia, as well as the United States. Given its near-pefect rarity, there is a good chance that the Mosler RaptorGTR will sell for more than the listed $700k.
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Launch of the 2012 Mosler RaptorGTR : 649hp/ton : Serial #001 of 1
Highest power-to-weight ratio factory street car for 2012


Supercar Engineering, Inc. Distributor for Mosler Automotive 15 October 2012

Mosler developed and produced extraordinary street and racing machines with a principal focus on lightweight technologies. The primary ingredient in the Mosler vehicles was extensive the use of the strongest and most expensive materials in the world. For example, the roof structure was a total of 20 layers of 3x3 twill carbon-fiber yielding a safety cell that proved to be the strongest structure the crash-testing agency had ever tested. Pound-per-pound, carbon-fiber is 5 times stronger than steel.

Unfortunately Mosler was pulled into the vortex of the financial downturn and only produced one of its latest products, the 2012 Mosler RaptorGTR. This product features both light weight and high power, netting the highest power-to-weight ratio of any factory street car ever produced: 649hp/ton.

The development and testing process for a vehicle at the cutting edge of technology is lengthy and extraordinarily expensive. It's the sport of kings. In the case of the Mosler MT900s (the first Mosler vehicle), even if the truly massive development, crash-testing, emissions-testing, certification and tooling expenditures are ignored; the cost to build every Mosler vehicle to the required level of perfection was breathtaking. Having first-hand knowledge of this process, it is clear why low-volume carbon-fiber hyperexotics typically cost more than $1,000,000USD.
Earlier Mosler products won the Car & Driver Lightning Lap both times that they competed against the best from Lamborghini and Ferrari. Mosler MT900R race cars hold the highest percentage of podiums/start of any manufacturer in FIA sports car racing. The pinnacle of the Mosler's street & racing development is the RaptorGTR, which combines the proven, crash-tested, ultralight, LeMans Prototype-style construction chassis with a truly exotic powerplant with visible twin turbos and several upgrades to the interior and exterior. The combination produces 838hp at an overall weight of 2580lbs; netting a power-to-weight ratio of 649hp/ton. The turbos behind the 7.0L forged V8 engine produce a fighter-jet soundtrack above 4000rpm that is unlike anything else on the road.

Acceleration = Force / Mass. The RaptorGTR's 838hp doesn't sound superlative compared with the 1200hp Bugatti Veyron SuperSport, however horsepower is only half of the equation. The other equally-critical factor is the weight that the engine has to propel. The RaptorGTR's 2580lbs (1173kg) is nearly a ton lighter than the 4545lb (2066kg) Veyron SuperSport. The Bugatti's power-to-weight ratio comes in at 528hp/ton. This is 121hp/ton less than the RaptorGTR. For reference, a 2012 Porsche 911 has a power-to-weight ratio of 230hp/ton.
The chart below tabulates the power-to-weight ratio of the top supercars and hyperexotics available in 2012. Figures are estimates based on published data.

Product Power Weight Hp/Ton Price (USD) Production
Mosler RaptorGTR 838 2580 649 $700,000 1
Bugatti Veyron SuperSport 1200 4545 528 $2,400,000 100
Pagani Hyuara 730 2970 471 $1,200,000 100
Ferrari F12 730 3355 421 $450,000 3000
Lamborghini Aventator 403 3472 403 $425,000 4000

Only one person will get to enjoy the machine that Ezra Dyer of Automobile Magazine described as: "It's like a bomb went off behind the rear bumper and we're surfing the shockwave."

Although only one person can own the highest power-to-weight ratio street car in the world, millions of enthusiasts will get to enjoy the online version of the RaptorGTR exclusively through AutoClubRevolution.com; a new online racing community developed by the engineers behind the largest console racing games. The virtual RaptorGTR is launching in time for Christmas as the highest performing car in the game: VPR over 600. Stay tuned for the exact VPR figure.

The 2012 Mosler RaptorGTR was developed by Supercar Engineering in cooperation with Mosler and fully built by Mosler Automotive. Supercar Engineering developed and owns technologies integrated into the RaptorGTR.

The RaptorGTR was intended to be the next model to extend the Mosler line. Macroeconomic conditions, phase-in of electronic stability control requirements on low-volume vehicles built after September 1, 2011, and other looming regulations for the American market has led to the Mosler factory being idled after the first RaptorGTR was completed and sold to Supercar Engineering on August 25, 2011.
Supercar Engineering purchased the RaptorGTR from Mosler in conjunction with an Exclusive Distributorship in China and Thailand. Since the change in circumstances has resulted in only one Raptor being built, SEI is marketing this unique vehicle to China as well as Russia, UAE, Saudi Arabia, and the United States. The list price is $700,000USD. Interior and exterior can be tailored suit the buyer's taste. Please direct inquiries to Supercar Engineering, Inc: 203.668.3904 or Supercar.Engineering.Inc@gmail.com. Supercar Engineering is responsible for the content of this release. See RaptorGTR.com for more information and photos.