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Onroak Automotive reveals Ligier JS P4

15 June 2017

It is powered by a 3.7L V6 Ford engine producing 420 hp. The conception of the Ligier JS P4 has benefitted from the experience gained by Onroak Automotive engineers with the JS P2, JS P3 and JS P217 models, but it enjoyed a greater freedom in its design. It has a futuristic look and more aggressive lines than the previous models.

A closed sports prototype with a carbon monocoque, it will be homologated in the FIA Free Formula Racing Cars (Group E) category, and will place itself in the endurance chain between the CN and the LMP3.

While the focus was also placed on ease of driving, without compromising performance, it meets important requirements in terms of safety, namely with a crash box and a carbon monocoque that respect the strict rules of the LM P3 category.

Its very good aerodynamic balance, the result of long work in CFD, will give plenty of grip without making the car too aggressive to master. An excellent weight distribution and centre of gravity, thanks to a specific transversal transmission, and a very compact 6-speed gearbox will make it easier to drive. The electronic assisted steering and the differential with paddles on the steering wheel will add extra comfort.

This Ligier JS P4 is the result of a joint effort between Jacques Nicolet, president of Onroak Automotive, and Phil Abbott, who can count on 18 years of experience as the head of Radical Sportscars. The latter’s experience in the creation of accessible and affordable racing cars has combined with the French manufacturer’s experience in the design of sports-prototypes: CN, LM P3, LM P2 and DPi.

The Ligier JS P4 will not just be restricted to test days. It will be eligible to race in various national and international series, such as the V de V Endurance Series, the 24H Proto Series and the Sprint Series. The experience gained by the teams and drivers with the Ligier JS P4 could then lead them towards racing in ACO series and climbing the endurance pyramid.

Its low operating costs will allow the users of the Ligier JS P4 to enjoy many hours of running. Furthermore, it can be adapted into a two-seater, an extra asset for coaching sessions.

HP Composites, continuing its collaboration with Onroak Automotive, will supply all of the composite structural components, as well as the bodywork’s carbon elements. Sodemo brings its know-how in the adaptation of Ford engines and will supply the ECU and the steering wheel. Quaife Engineering has created a gearbox especially for the Ligier JS P4 while the car will be shod with Dunlops.

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