As a specialist technology company with the ambition to become a major OEM supplier in the EV era, Rimac is already a 300-person-strong powerhouse. Thanks to their bespoke solutions, the Croatian team has built up its resume by working with such companies as Koenigsegg, Aston Martin, Jaguar Land Rover, and Renault, as well as Siemens and Magna Steyr. But while covering all engineering bases from "bolts to bytes" sure is impressive work, Rimac's own cars are even more so.
While the Concept_One was an ultra-limited edition of technology demonstrators, Rimac's second model will be a proper production car that's globally homologated, and expected to be built in at least 150 examples. So meet the C_Two. It's no concept.
As Rimac explains, the C_Two features a full carbon fiber monocoque with bonded carbon roof, integrated battery pack and rear carbon subframe. Crash structures are formed from carbon fiber and aluminum, and the body itself is pure carbon fiber. Double wishbone suspension with electronically-controlled dampers and active ride height take car of the bumps, while each wheel is powered by its own individual electric motor, giving both four-wheel drive and full torque-vectoring control. The front wheels get power through a pair of independent single-speed gearboxes, while at the rear, a couple of two-speed, carbon-clutched gearboxes take care of the peak torque of 1696 lb-ft.
The Concept One was 1224 horsepower on a good day. The C_Two has 1914. With pretty much zero maintenance.
When it's time to get all that power under control, it's got 390mm Brembo CCMR carbon ceramic brake discs and six-piston calipers on both the front and rear axles. With all 1914 horses onboard, the C_Two does the zero to 60 sprint in 1.85 seconds. Keep your foot in it, and 186 mph elapses in 11.8 seconds. This EV will reach 258 miles per hour.
Drive it at a more reasonable pace, and your range should be 403 miles based on the European test cycle. Active aero elements include front and rear diffusor, the rear wing, the bonnet turning vane, plenty of underbody inlets and outlets. With their help, the C_Two sports an impressive Cd figure of 0.28 in low-drag mode. It will also recharge itself to 80 percent in less then half an hour when connected to a 250kW fast charging network.
The car has a 22 kW 3-phase on-board charger, while its battery pack contains 6960 Lithium manganese nickel cells, providing a maximum voltage of 720V. Its capacity is 120 kWh, and it provides 1.4 MW of electric power. It also makes the car weigh 4300 lbs, bringing seven cooling systems and a whole lot of 48V pumps and fans on deck. Still, weight distribution remains nearly ideal at 48 percent front, 52 percent rear.
Inside, the C_Two comes not only with three large touch screens, but also with a full ADAS system consisting of eight cameras (including front stereo vision), Lidar, 6 radars and 12 ultrasonic sensors. Here's what all that does for you:
"Essentially, as part of the suite of electronics that comes with advanced autonomous capability, the Driving Coach configuration in the C_Two can load selected race tracks in real-time, offering clear and precise guidance on racing lines, braking/acceleration points and steering inputs. A near-gaming learning experience, with real-world excitement.
The same artificial intelligence will provide intervention and active safety as ‘ADAS’ (advanced driver-assistance system) while on the road: from collision risk prediction allied to automatic emergency braking and evasive control, to blind-spot monitoring, to lane-keep assist and fully adaptive cruise control including traffic pilot functionality. The car will even adapt its characteristics according to the prevalent weather conditions, changing strategy during, for example, fog or heavy rain.
With eight on-board cameras, a lidar, six radar emitters, twelve ultrasonic sensors, as well as an exceptionally precise global positioning system and IMU sensor for autonomous driving, the C_Two is one of the most sensitive and connected series vehicles in the world. In terms of raw numbers, the car produces six gigabytes of data per hour of driving, and six petabytes in 1000 hours. To put that into context, the entirety of human history can be neatly encapsulated in just fifty petabytes. Indeed, to process the amount of information produced by the 400 various sensors present on the car, the C_Two is equipped with 72 electronic control units and processors—equivalent to 64.4GHz or approximately 22 MacBook Pros."
Under the butterfly-doored body designed by Adriano Mudri, the C_Two features a flat floor and a rear venturi for maximum stability at high speeds. And at 258 miles per hour, the active air brake will come handy too.
Exciting doesn't even begin to describe it.