The Rimac C_Two is designed to represent the absolute peak of EV technology, which means the production-ready version will need to be the fastest and most engaging electric car on the planet. To achieve that, Rimac went deep into advanced aerodynamics, aided by a supercomputer at the University of Rijeka.
Update: What we thought was a C_Two convertible is actually an older Concept_One render. We've updated the post accordingly.
While Rimac's Design Director, Adriano Mudri had to come up with proportions showing off the C_Two's electrified nature, no styling choice could jeopardize aerodynamic efficiency.
To reduce lift and drag without saying goodbye to downforce and sufficient cooling, the C_Two uses an active rear wing and flaps to adjust to your driving style. In low-drag from (with the wing down and the flaps shut), the C_Two's drag coefficient is 0.28, which is pretty impressive considering that a current Audi R8 V10's is 0.36. In fact, the Rimac is much closer to a 2018 Toyota Prius, which yields a 0.24 Cd figure.
To make this happen, Rimac built a full-scale C_Two model, which was tested in a wind tunnel with a rolling road. the average deviation between their computer fluid dynamic simulations and the wind tunnel results was only 2.4 percent. That's partly because they used a supercomputer at the University of Rijeka called BURA, to take care of the hardest of CFD calculations. Rimac says that for the C_Two, it had to go through "70 million elements and complex equations."
Following 3D simulations and the trip to the wind tunnel, Rimac's next stop is on the test track, where some tires shall get smoked.