While the spectacular exterior design of the Rimac C_Two may be complete, the Croatian car manufacturer continues to refine the all-electric hypercar before putting it into production.

In a new video released by Rimac, we’re offered a glimpse into the aerodynamic testing of the C_Two. Additionally, the video highlights how important aerodynamics were in shaping the hypercar’s exterior design.

One of the key challenges in creating the C_Two has been to ensure that it meets homologation requirements for all major markets around the world. During the early stages of the car’s ongoing two-year development, engineers used a supercomputer for Computational Fluid Dynamic (CFD) simulations that show how air flows around the car. According to Rimac, modifications have been made to every one of the vehicle’s exterior surfaces since aerodynamic testing commenced.

In creating the hypercar, the car manufacturer set out to build the world’s most powerful and fastest accelerating production car. Thanks to a combination of no less than four electric motors pumping out a combined 1888 hp and 1696 lb-ft (2300 Nm) of torque, the C_Two will apparently hit 60 mph (96 km/h) in a blistering 1.85 seconds, 100 mph (160 km/h) in 4.3 seconds, and reach a 258 mph (412 km/h) top speed.

Equally as impressive as the C_Two’s performance specs is the fact that its huge 120 kWh battery pack with liquid-cooled thermal management technology allows the vehicle to travel for 404 miles (650 km) on a single charge.

Rimac intends on building just 150 units of the C_Two, each priced at $2.1 million.