1991 Cadillac Fleetwood Brougham D'elegance Mini Corporate Limo S&s Conversion on 2040-cars

Auto blog

Cadillac Rear Camera Mirror | 2017 Autoblog Technology of the Year Finalist

We give Cadillac a lot of credit for being the first to make good on the promise to replace mirrors with cameras and displays. That was good enough to earn the Cadillac Rear Camera Mirror a place on our 2017 Technology of the Year awards shortlist for new features. The idea behind this system is relatively simple; what perhaps took more doing was getting the regulations in place to allow a video feed to replace the government-mandated mirror. The hardware and that rules compliance starts with what looks like a normal rearview mirror – because it defaults to being a mirror until you switch on the display or in the event the system somehow fails. Flip the little toggle at the bottom of the mirror – the one normally used to switch from day to night mode – and the reflection is replaced by a very crisp feed from a camera at the back of the vehicle. This live stream gives you a wide-angle view of what's behind, without obstruction from back-seat passengers, headrests, or any bodywork. The camera is even shielded from weather and has a coating to shed water. What you see doesn't exactly look like a normal reflection, but the quality is good enough and you see more than you would normally with something aimed through today's small rear windows. But because it isn't actually a reflection, you have to make some adjustments. When your eyes are focused down the road, glancing at a mirror gives you a view the same distance away but in the rear. With the rear camera mirror, a glance back requires your eyes to first refocus on the display, which takes a moment. And unlike a normal mirror, which you look through at an angle, this display is angled toward the driver but projecting an image that looks straight back – no matter how you move it, the image doesn't change like a mirror's would. And because it's an image and not a reflection, you can't choose what's in focus and lose your sense of depth perception. It's not clear whether objects in mirror are closer or farther than they appear. And there are other limitations. For instance, while the display balances bright lights and dark surroundings well at night, it is tricked by LED headlights, which flicker at a rate faster than the camera shoots. The result is a distracting strobe effect like you get when you point a smartphone camera at any LED light source. For those with migraine sensitivity, this kind of fast flashing can cause real problems.

How GM's grueling 24-hour test gets the kinks out of its performance cars

One of the biggest challenges automakers face when designing a high-performance car is making sure that it is both fast and reliable. For General Motors, any car that might be taken to the track by its owner - like the Corvette, Camaro Z/28 (shown above) and the Cadillac CTS-V, for example - undergoes a rigorous and strenuous 24-hour test by engineers at the Milford Proving Grounds, as pointed out by Car and Driver.
We've posted on this topic in the past - on a video showing the Camaro ZL1 being brutalized, for instance - but this article gives a more in-depth look at what actually happens behind the scenes... including what that poor ZL1 went through. Though the test isn't for 24 hours straight, the cars are pushed as hard as possible by some of GM's best drivers with only the brakes and tires replaced frequently.
We don't want to ruin the fun for you, but it is an interesting article that tells just some of what GM does to develop its sports cars. Check out the full article over at Car and Driver for the rest of the story.

2019 Autoblog Technology of the Year finalists revealed

Every fall, we line up a range of new models with the latest and most compelling automotive technology from the past year. We test everything from semi-autonomous systems like Tesla's Autopilot to trick suspension setups like the Multimatic spool-valve shocks on the Chevy Colorado ZR2. We spend months paring down the list to a small group of contenders. After testing, dinner and healthy debate, we tally up the votes and name our winner. For Autoblog's 2019 Technology of the Year Award, our three finalists are the Cadillac CT6 with Super Cruise, the Infiniti QX50 with Variable Compression Turbo and the Mercedes-AMG E 53 with EQ Boost. Super Cruise is an advanced SAE Level 2 semi-autonomous system, though Cadillac (unlike some of its rivals) is reluctant to push that point. Cadillac would like you to think of this as an advanced driver assistance feature rather than a semi-autonomous system. Super Cruise allows completely hands-free highway driving. Thanks to a driver-facing camera, the system forces the driver to keep his or her eyes on the road even if hands are off the wheel. Although the CT6 is being discontinued, look for Super Cruise to make its way to other Cadillacs soon. VC Turbo is a little more complicated. Basically, Infiniti's 2.0-liter turbocharged inline-four can vary the compression ratio on the fly. In general, turbocharged engines are more efficient than naturally-aspirated engines when on boost, but can perform worse at low revs. VC Turbo allows for a best-of-both-worlds situation, increasing the compression at low revs and backing it off once the turbo spools up. The best part is that it does so seamlessly, with only a dash readout letting you know what's going on under the hood. Our third finalist is the EQ Boost 48-volt system in the Mercedes-AMG E 53. Like VC Turbo, EQ Boost does a lot just beneath the surface. Mercedes has developed a new turbocharged 3.0-liter inline-six and paired it with a small electric motor. While the car can't run on electricity alone, the motor helps improve both efficiency and performance, smoothing shifts and filling in low-end torque before the turbos spool up. Think torque fill, similar to a McLaren P1. Who can complain about better fuel economy and more torque? Look for the 48-volt system to make its way into most of the Mercedes-Benz lineup. The winner will be revealed next week on Autoblog, and we'll present the award Jan. 15 at the Detroit Auto Show. Related Video: