We Drive BMW's Neue Klasse! Do 4 Brains + Heart of Joy = Ultimate Driving?
We’ve explained the abundant new tech in BMW’s revolutionary Neue Klasse, and now we’ve flogged the first model, an iX3 prototype. Will it make drivers’ hearts joyous?In the early ’60s, a struggling BMW needed a clean break from its dowdy, outdated luxury models and slow-selling economy cars and motorcycles. That’s when the Quandt family invested in the brand, ordering development of the Neue Klasse—BMW’s then first completely new car since 1933. These sleeker models introduced the iconic “Hofmeister kink,” drove well, and made the brand and its reputation what they are today.
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BMW is reviving that nomenclature to signal that the architecture underpinning this 2026 BMW iX3, the forthcoming i3 sedan, and a whole family of 40 new electric, gas, and hybrid SUVs, sedans, and maybe a supercar is the “newest” since that 1962 BMW 1500. Will drivers really feel the difference?
BMW organized an elaborate demonstration drive of prototype iX3 50 xDrive models (the first Neue Klasse variant to launch) at its Miramas proving ground in southern France in hopes we’d feel it, and we came away impressed.
1-Millisecond Latency
Probably the single biggest achievement here is the switch to zonal architecture with “four big brains”—the one dedicated to driving dynamics is dubbed “Heart of Joy”—directly running every single gizmo and widget on the car, with no hierarchical delegation to supplier-authored software running on supplier-sourced silicon. The whole shebang is BMW here, which cuts overall latency (the time between ordering and executing an action) from the typical 10–50 milliseconds down to just 1 ms. Believe it or not, you can feel this at the wheel of this fully electric iX3, because it is forever calculating precisely how much grip is available at each tire.
Damp Cornering
On a wet handling course interspersed with dry patches, in its default driving mode the iX3 always heads in the direction it’s pointed despite our determined efforts to force oversteer or make it plow. In Sport mode, the system rewards similar antics with gentle, easily maintained drifts. We especially appreciated this system on our early morning drive on twisty, hilly rural roads still partially damp with morning dew. Powering out of shady corners gave the impression they were bone dry, when strong braking in similar corners prompts loads of ABS intervention, revealing the low-mu truth.
Always knowing the precise grip level allows that brainy Heart of Joy to mete out precisely the maximum amount of power or retardation conditions will allow, with nothing squandered in clumsy iterative braking stabs. This allowed our iX3 to follow an M4 remarkably closely around much of the handling circuit, despite weighing more and packing roughly 25 percent less power. It’s like the hyperfast electronics bestow “virtual agility.”
Of course, the M4’s actual agility clearly allowed it to scoot out of tighter corners more quickly, as we waited for our taller SUV to settle back down to allow even distribution of full power to all four wheels. Alas, there’s no electronic escape from physics.





