Hyundai evaluates significant aero modifications in Rally Mexico pre-event tests

The Rally Mexico pre-event tests started this week with the Toyota Gazoo Racing team in Almeria, Spain, as no tests are allowed outside Europe. Since Saturday, Hyundai Motorsport has also started testing in preparation for the Mexican event, near the same area, in the south of Spain.

During the test, the i20 Coupé WRC driven by the duo Sordo/Del Barrio has been modified, in order to test some new aero parts. The most visible modification is the addition of a modified rear wing, similar in design to that used by the Toyota Yaris WRC since Rally Turkey, as well as to the design proposed by Citroën in the pre-event tests of Rally Catalunya 2019. The new wing includes thinner supports, two vertical strakes on both edges of the wing, and two vertical endplates.

D.Sordo/C.Del Barrio, Hyundai i20 Coupé WRC, Rally Mexico 2020 pre-event test, South of Spain, February 22nd, 2020 – picture extracted from this video by Javier Bajo Video

K.Meeke/S.Marshall, Toyota Yaris WRC, Rally Catalunya 2019 pre-event test, October 2019

S.Ogier/J.Ingrassia, Citroën C3 WRC, Rally Catalunya 2019 pre-event test, October 2019

Another modification with respect to the original wing is the addition of side wings. With a design similar to that used by Toyota or Ford, they represent an improvement over the original design of the i20, as they will allow generating some additional downforce by using the air flowing on both sides of the car.

D.Sordo/C.Del Barrio, Hyundai i20 Coupé WRC, Rally Mexico 2020 pre-event test, South of Spain, February 22nd, 2020 – picture extracted from this video by Javier Bajo Video

The introduction of a new wing design will increase downforce generation at the car rear, for what Hyundai has included a second modification, at the car front, to keep a good aero balance of the car.

D.Sordo/C.Del Barrio, Hyundai i20 Coupé WRC, Rally Mexico 2020 pre-event test, South of Spain, February 22nd, 2020 – picture extracted from this video by Javier Bajo Video

It consists in the addition of a small winglet on top of the front fenders. The design is very similar to that of the Yaris, but with no air vent on top of the fender. The goal of adding such winglets is just to generate higher downforce on the front axis while, at the same time, to facilitate airflow towards the new side wings of the rear wing. The consequence is a higher grip at both the front and the rear wheels while keeping an adequate aero balance of the car.

D.Sordo/C.Del Barrio, Hyundai i20 Coupé WRC, Rally Mexico 2020 pre-event test, South of Spain, February 22nd, 2020 – picture extracted from this video by Javier Bajo Video

The front aero package introduced in Finland 2019 remained unchanged during the test. As soon as more pictures are available, we will upload them to complete the analysis.

A more detailed review of the rear wing shows that, in comparison with the other two wings, the new wing of the Hyundai seems to be less prominent, although the angle at which the picture is taken prevents us from extracting definitive conclusions. Another difference is that the vertical supports of the Hyundai are not completely filled¨(same as those of the Citroën), thus they will not contribute to getting extra load while cornering.

Also, the new Hyundai’s wing has the biggest gap between upper and lower wings, allowing more air to flow between them, which, in theory should improve the wing performance.

4 thoughts on “Hyundai evaluates significant aero modifications in Rally Mexico pre-event tests

  • 2020-03-11 at 22:06
    Permalink

    Thanks for the detailed analysis as always. Looks like Hyundai will run this aero package in Mexico! You can see a glimpse of the fender and rear wing in Ott’s new Instagram post. Interested to see how it performs against Toyota. Any clue as to why they are not introducing the central exhaust outlet yet? Would it be classified as an engine upgrade or something?

    Reply
    • 2020-03-12 at 07:08
      Permalink

      Thank you for your kind words. Yes, we will see the new aero from Mexico, although it is not the best place to see how well it works, because of the low average speed. Regarding the central exhaust outlet, could be a joker issue, yes. Not sure if it’s a bodywork or engine joker, but probably they did not want to spend so much jokers so early in the season.

      Reply
  • 2020-03-12 at 19:01
    Permalink

    Hey. Can you make a post on how the rally teams manage to run a cover / protection over the front and rear suspension arms for better aero? How do they fasten it, does it not flap about when the suspension is not fully extended? What brings it back up again considering the low pressure under the car would want to suck it down etc etc. Thanks.

    Reply
    • 2020-03-12 at 18:04
      Permalink

      Good point, thanks! Post proposals are always welcome, we’ll try to do our best.

      Reply

Leave a Reply

Your email address will not be published. Required fields are marked *