Some racing series are completely open to any constructor interested in competing. Others are limited to just one constructor. But there's a middle ground between the two, and that's where the LMP2 class of sports car racing has settled.

In a joint decision made by the FIA, ACO, and IMSA, all second-tier Le Mans prototypes will now be supplied by one of four constructors, which the three motor racing sanctioning bodies have just identified. Starting from 2017, the only manufacturers that will be authorized to supply LMP2 chassis will be Dallara, Onroak, Oreca, and a new joint venture between Riley and Multimatic. Though Onroak Automotive is strictly a French company, the others are all transoceanic outfits with operations in the United States.

The rules will be applicable to a wide range of racing series that run LMP2 prototypes, including the United SportsCar Championship, the FIA World Endurance Championship, the European Le Mans Series, the Asian Le Mans Series, and of course the 24 Hours of Le Mans itself. So come 2017, don't expect to see any other suppliers represented in the LMP2 class in any of those racing series. That's bad news for other constructors that have been active in the class, like Signatech, Zytek, Ligier, and Lola.

A new LMP3 class is also being introduced this season, but the restriction of the LMP2 class could also see more manufacturers stepping up to the top-tier LMP1 class that's currently only part of the FIA WEC and Le Mans (not the other regional series). For example, Britain's Strakka Racing, which long competed in LMP2, announced in the wake of the regulators' decision that it's preparing to enter LMP1 as a privateer outfit. The bigger question is what the next step will be for companies like Mazda, which fields its own diesel Skyactiv Prototype in the LMP2 class of the United SportsCar Championship, or Honda, which only recently launched its new HPD ARX-04b prototype.

Also starting in 2017, all LMP2 entries will be powered by the same engine. Though the three bodies have yet to agree on which supplier will get the nod, the tender calls for an output of approximately 600 horsepower. A single electronics supplier will furnish the engine management as well. Currently, Nissan is one of the most popular engine suppliers in the class, providing the motivation for about a quarter of the LMP2 entries at Le Mans alone.


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2017 LMP2 REGULATIONS - THE FOUR CHASSIS CONSTRUCTORS SELECTED

After eight months' work and a two-month selection process, the Automobile Club de l'Ouest (ACO), the International Motor Sports Association (IMSA) and the Fédération Internationale de l'Automobile (FIA), have chosen the four constructors who will supply chassis for the cars that will compete in the Le Mans Prototypes 2 category in ACO- and FIA-governed series and the Prototype class of the IMSA sanctioned TUDOR United SportsCar Championship beginning in 2017, when the category's new regulations come into force.

The four constructors are: Dallara (Italy-United States), Onroak Automotive (France), Oreca (France-United States) and the joint-venture Riley Tech/Multimatic (USA, Canada and the United Kingdom), subject to validation of the regulations by the World Motor Sport Council on 10th July.

On 11th June 2015 the main guidelines of the 2017 LM P2 regulations were unveiled during the Automobile Club de l'Ouest's press conference. The aim of these regulations is to ensure long-term success for this category thanks to a reduction in costs, the guarantee of stability in the regulations and the intention to bring the performance of the cars in the category closer to those of the current LM P1s. They will be applicable in the Le Mans 24 Hours, the FIA World Endurance Championship (WEC), the Asian Le Mans Series (Asian LMS), the European Le Mans Series (ELMS) and in the TUDOR United SportsCar Championship.

In ACO and FIA governed series, LM P2 cars will be powered by a single engine manufacturer to be selected this September.

In the TUDOR Championship, Prototypes will be powered by engines from a variety of manufacturers and the chassis will include manufacturer-specific styling elements. Announcements on participating manufacturers will be made as programs are confirmed.

The target horsepower for cars in all series is approximately 600bhp, and an Adjustment of Performance process will be used to ensure competitive balance. The ACO, FIA and IMSA also will select a single electronics supplier for all cars this September.

TUDOR Championship Prototype teams will be eligible to use the same engines and chassis they race with in the United States at the Le Mans 24 Hours and in ELMS events, providing they utilize the constructor-specific bodywork as used in all championships outside North America. Likewise, all LM P2 teams will be eligible to race in all TUDOR Championship events using the same chassis and engine configuration they use in their home championship.

The first provision to achieve the stated objectives and make these LM P2 regulations viable and workable was to select four chassis constructors including at least one from North America.
The tender was launched on 13th May 2015 and closed on 10th June. The selection committee, which comprised three representatives from the ACO, IMSA and the FIA, has drawn up the list of the four constructors selected.

They were selected according to the following criteria:

- Experience and reputation;
- Industrial and engineering capacity, management of the supply chain;
- Financial situation;
- Investment devoted to the programme;
- Quality of the service to clientele;
- Constructors implanted in Europe and the United States with an undertaking to provide quality backup in Asia and throughout the world;
- Quality of the project and the car;
- Provisions of the project aimed at reducing running costs and the annual budget of the entrants.

The Dallara, Onroak Automotive, Oreca and Riley Tech/Multimatic teams now will join the technical working group jointly managed by the ACO, the FIA and IMSA to define the final details of the regulations. One of the main objectives of this working group is to optimise all of the parameters to ensure the most economically viable set of rules for the teams.

The final set of provisions of the LM P2 regulations will be adopted by the World Motor Sport Council in December of this year, and the timetable will respect the following five stages:

1st January 2016: validation of the safety structures/monocoque;
1st April 2016: validation of the bodywork and the mechanical components;
1st June 2016: validation of the crash test;
1st September 2016: presentation of the draft homologation sheet;
From 1- 15 December 2016: inspection and final validation of the car;

The cars must be homologated by, and available for use in January 2017 for the Rolex 24 At Daytona, the first race at which the new TUDOR Championship Prototype / LM P2 category regulations will be applied.

Pierre Fillon, President of the Automobile Club de l'Ouest: "The Automobile Club de l'Ouest is proud of the work that's been done on the future LM P2 category regulations, which has resulted in the selection of four prestigious chassis constructors: Dallara, Onroak Automotive, Oreca and Riley Tech/Multimatic.

"Our priority is to supply the teams and drivers entered in this category with the best options and solutions to race in endurance on a long-term basis. Thanks to the decisions taken jointly by the ACO, IMSA and the FIA we have managed to bring together a high-quality pool of constructors which reinforces the interest in the series and its glowing future prospects.

"These new regulations and the provisions that result from them, the first of which is the selection of the four chassis constructors, will lead to more competitive cars, an efficient, cost-capped, viable economic model, a global market for cars that can race in North America, in Asia and in Europe allied to an excellent level of service for the entrants.

"The philosophy of the category has been respected and we have made sure that it has kept the variety of cars so dear to our fans. In the wake of the major manufacturers in LM P1 the new LM P2 regulations, which have attracted these prestigious constructors, is now more than ever the benchmark international competition devoted to private teams, up-and-coming drivers and, depending on the series, top-class gentlemen drivers."

Scott Atherton, President of the International Motor Sports Association: "The process we followed with our partners at the ACO and the FIA to select these four chassis constructors was unprecedented in its level of professionalism and collaboration among three major governing bodies in international motorsport. It was the most thorough and detailed selection process we've ever seen in the sport. "Arriving at this decision was not easy, as there were many qualified candidates, but it represents a key landmark as we chart the future of the sport in the United States and abroad. However, this is only the beginning. There are many other important stops along the way before we have the honor of debuting the new Prototype at the Rolex 24 At Daytona in 2017, but this process confirmed a good result and is a major step forward."

Jean Todt, FIA President: "The FIA is very happy to see such a significant achievement of this new era for LM P2 and sports cars. The FIA, ACO and IMSA have agreed to the unification of sports cars so that the same cars and same teams can race on both sides of the Atlantic. This is further evidence of the FIA's continuing efforts to pave the way for more sustainable sport and keep costs under control – in this instance working with strong partners during the process.

"Safety has also been at the core of these new LM P2 regulations; they will integrate all of the knowledge that we have developed through current LM P1 regulations, with new requirements such as utilising a closed cockpit, rear crash test and wheel tethers."

Sir Lindsay Owen-Jones, FIA Endurance Commission President: "This is a realistic approach to creating economies of scale and should make endurance racing even more dynamic and attractive. It is also, perhaps, the first time that the global economy of the racing car market has been integrated into the regulations; this 2017 concept for LM P2 and the limitation to four chassis manufacturers will help establish greater return on investment by presenting more opportunities to race the same type of cars, and by avoiding excessive fragmentation of the market."


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