Rimac, the supercar maker best known for the all-electric Nevera, has presented its latest developments at this year’s IAA Mobility expo. The company has already secured a major supply agreement to enable mass production of solid-state batteries with extreme charging speeds and drivetrain units capable of exerting 6,250 Nm (4,610 lb-ft) of torque.
Starting with the innovative battery, it is the result of Rimac’s collaboration with ProLogium and Mitsubishi Chemical. It is a lightweight and durable 100-kWh high-density power storage unit. Charging it from 10 to 80% only takes six minutes and 30 seconds. The only caveat is that the mass production isn’t there yet, with the company hoping to start the shipments in late 2027.
Along with this groundbreaking solid-state design, Rimac showed improved versions of its current batteries for EVs and hybrid supercars. These should be ready for prime time in 2026.
On the drivetrain front, the Croatian automaker bet on versatile powertrain units known as the Sinteg 300 and the Sinteg 550. Both are meant to be installed on all kinds of performance vehicles regardless of their body type and terrain capabilities – from city-bound hatchbacks to serious off-roaders.
A single unit like this consists of what the manufacturer calls the e-Axle, one or more electric motors and inverters, and the required reduction gear. They produce between 204 and 483 PS (201–476 hp; 150–355 kW) and can exert between 2,500 and 6,250 Nm (1,844–4,610 lb-ft) of torque based on the current needs. This is made possible thanks to variable gear ratios found inside the powertrain unit.
Rimac hasn’t delved into any technicalities just yet, but briefly mentioned an extremely lightweight rotor and a breakthrough magnet unit used in both Sinteg 300 and 550. Production will start with the model 550 in Croatia next year.
It remains unclear what car brands Rimac plans to supply its powertrains to. According to Nurdin Pitarevic, the COO of Rimac Technology, the motors are both efficient and versatile enough to warrant installation on “hundreds of thousands of EVs” over the next few years.
