
Car Technology
360-Degree Camera Systems: How Cars See All Around Them
360-degree camera systems stitch images from several cameras into a bird's-eye view of the car. How they work and why they help big SUVs in tight city spaces.
2 min read
The Journal
Plain-English explainers on the technology that makes a luxury car quiet, smooth, safe and smart.
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Car Technology
360-degree camera systems stitch images from several cameras into a bird's-eye view of the car. How they work and why they help big SUVs in tight city spaces.
2 min read

Car Technology
What a 48-volt mild hybrid is, how its starter-generator smooths stop-start, recovers energy and adds torque — and how it differs from full hybrids.
2 min read

Car Technology
ABS stops wheels locking in hard braking so you can still steer. Its history from aircraft to the 1978 Mercedes S-Class, and how it enabled ESC.
2 min read

Car Technology
Acoustic laminated side windows and double glazing cut wind noise, block UV and resist break-ins. How car glass is made and why luxury cars use it.
2 min read

Car Technology
Cars use microphones and speakers to cancel engine and road noise, much like noise-canceling headphones. How it works, plus the passive tricks luxury cars use.
2 min read

Car Technology
Adaptive cruise control keeps a set distance from the car ahead using radar or cameras. Its history from 1990s lasers to today's stop-and-go systems.
2 min read

Car Technology
Adaptive headlights swivel into corners and dim segments to avoid dazzling others. From the Citroën DS to Matrix LED, laser lights and Mercedes Digital Light.
2 min read

Car Technology
How air suspension works, why luxury sedans and SUVs use it, its history from the 1957 Cadillac to Airmatic, and the pros and cons for passengers.
3 min read

Car Technology
Airbags were patented in the 1950s, appeared on GM cars in the 1970s and became mandatory in U.S. cars in the late 1990s. How they work and how they evolved.
2 min read

Car Technology
What armored vehicle ratings like B4, B6, B7, VR7 and VR9 mean, how armoring changes a car, and which luxury cars are sold factory-armored.
2 min read

Car Technology
Automatic emergency braking can stop a car before a collision. How AEB works, its origins in luxury cars, and the U.S. rule requiring it on new vehicles.
2 min read

Car Technology
AWD and 4WD both power all four wheels, but in different ways. How they differ, which suits Northeast winters, and why tires matter most.
2 min read

Car Technology
Body-on-frame SUVs like the Suburban and Escalade use a separate ladder frame; unibody vehicles like the GLS and X7 don't. Pros and cons for passengers.
2 min read

Car Technology
How cabin air filters keep pollen, dust and exhaust particles out of the car, what HEPA and activated-carbon filters add, and why it matters in city traffic.
2 min read

Car Technology
How IIHS Top Safety Pick awards and NHTSA five-star ratings work, how they differ, and why newer tests focus on rear-seat passenger protection.
2 min read

Car Technology
Béla Barényi patented the crumple zone and rigid safety cell in the early 1950s; the 1959 Mercedes W111 was the first car built around it. How it works.
2 min read

Car Technology
Diesel SUVs like the Duramax Suburban offer torque and highway economy; gas V8s are simpler and more common. The pros and cons for long trips and towing.
2 min read

Car Technology
Electronic stability control brakes individual wheels to prevent skids. Its 1995 Mercedes debut, the 'moose test' and why it's now mandatory.
2 min read

Car Technology
Electric cars can lose a significant share of their range in cold weather. Why batteries and cabin heating use more energy, and how preconditioning helps.
2 min read

Car Technology
Head-up displays project speed and directions onto the windshield. Their fighter-jet origins, the first car HUD in 1988 and today's augmented-reality systems.
2 min read
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