"When the Polestar 4 goes on sale in the U.S. this fall, it will be one of the most unique cars on the market. The Swedish automaker has deleted the rear window on its coupe-shaped crossover, meaning the rear is now fully covered by an aluminum body panel. Drivers can still look at what's behind, thanks to a digital rearview mirror."
"Most electric crossovers look stubby and ride high because of their floor-mounted battery packs. To keep passengers from sitting like they're squatting with their knees up, automakers have to raise both the seats and the roofline to provide adequate headroom. That approach doesn't bode well for low-slung coupes, according to Polestar. The second big reason was structural. The roof area above the rear passengers plays a key role in rollover protection. Removing the rear windscreen helps preserve that rigidity while still maintaining the coupe-like shape."
Polestar removed the rear windshield on the Polestar 4 coupe-shaped crossover and replaced it with an aluminum body panel and a digital rearview mirror fed by a roof-mounted camera. The roof camera is 2.5 megapixels and transmits a low-latency feed to the mirror while a second adjacent camera supports ADAS functions. Removing the rear windscreen preserves structural stiffness and rollover protection and helps maintain interior headroom and a low, coupe-like silhouette despite a floor-mounted battery pack. Initial driving impressions felt strange at first but proved never inconvenient during a drive in Austin, Texas.
Read at insideevs.com
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