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2019 BMW M850i xDrive: How it compares on paper with other GT coupes

Although the hot new vehicles for the rich seem to mainly comprise SUVs and supercars, the neglected luxury GT coupe segment is starting to see some life again. The latest to add a spark to this set is the 2019 BMW M850i xDrive. It goes on sale later this year, and revives the 8 Series that's been dead since the 1990s. The first version available to Americans will be one with a twin-turbo 4.4-liter V8, with other versions likely following. Before it launches, we wanted to get a lay of the grand-touring land and see how the new BMW stacks up to the competition in performance, practicality and price. While some of these models have higher-performance or more-affordable iterations, we picked the versions that would be the closest match to this 8 Series model. They include the 2019 Lexus LC 500, 2018 Mercedes-Benz SL 550, 2018 Mercedes-Benz S 560 Coupe and the 2018 Maserati GranTurismo. We will also provide some short summaries on our experiences with these cars, but to get a full picture of each model, be sure to check out their full reviews. And if you want to compare any of these cars with models you don't see here, be sure to try out our car comparison tool. Engines, transmissions and performance On paper, the BMW M850i xDrive is clearly the performer of the group. It has the most power and torque at 523 horsepower and 553 pound-feet. Coupled with all-wheel-drive and an eight-speed automatic, the car is able to overcome its relatively portly 4,478-pound curb weight to hit 60 mph in a scant 3.6 seconds. That's more than half a second quicker than the lightest car in the group, the Mercedes-Benz SL550, which weighs 4,012 pounds. The other three vehicles are in the low- to mid-4-second range to 60 mph. Though the Maserati is the slowest to 60 mph, it does boast the highest top speed of 186 mph. The M850i and SL 550 are electronically limited to 155 mph, while the Lexus is limited to 168 mph. The Mercedes S 560 has the lowest top speed at an electronically limited 130 mph. View 52 Photos Of interest is that there's a 50/50 split among these cars between using a pair of turbos, and having none at all. The BMW and Mercedes resort to forced induction, whereas the Lexus and Maserati choose to stay naturally aspirated. This is likely why the Germans break 500 pound-feet of torque, while the others don't make it to 400. Also interesting is the spread of gear quantity. The Maserati has just six ratios to choose from, and the Lexus has a whopping 10.

Mercedes-Maybach spied inside and out sporting the huge S-Class screen

A new Mercedes-Benz S-Class is well on its way, and that means a new Mercedes-Maybach is following right behind it. We were introduced to the new Mercedes-Maybach strategy over five years ago. At the end of 2019, Mercedes added to the small collection with the GLS 600, bringing an SUV into the Maybach fold. These spy shots mark our first good look inside and outside the next-gen Mercedes-Maybach sedan. We’ll point out the massive screen first. Photos of this huge slab of screen have largely shown it turned off. Now, we get a solid look at the display all lit up and running MercedesÂ’ next iteration of MBUX. The icons and UX look a whole lot like MercedesÂ’ current infotainment system design, just blown up to a much larger size. Mercedes is surely going to hit us with some new out-there features we didnÂ’t know we wanted and may not even use, but thatÂ’s the way it goes with excessive luxury. The gauge cluster is pretty standard for new Mercedes with a flat digital screen. An “EQ” emblem displayed in the cluster also indicates that Mercedes plans to implement its EQ Boost mild-hybrid tech with the turbocharged engine(s) offered in this new generation. The current car comes in S560 (V8) and S600 (V12) variations. We don't know what MercedesÂ’ powertrain plans are for the time being, but the GLS 600 uses 48-volt technology with its 4.0-liter twin-turbo V8 and makes 550 horsepower and 538 pound-feet of torque. Ideally, the smooth and silky V12 sticks around in the top-shelf S-Class as well. As for the design, itÂ’s exactly what one might expect from a Mercedes-Maybach. The wheelbase is stretched compared to the regular S-Class weÂ’ve spied before, and it has the signature slatted grille. Pop-out door handles appear to be carried over from the new S-Class, too. We expect the new S-Class isnÂ’t far from a reveal. ThereÂ’s a chance it still breaks cover this year, even as most automakers face delays from the coronavirus. Once itÂ’s out, the Mercedes-Maybach is likely to follow soon after. Related video:

VW joins Daimler's protest of new A/C refrigerant as EU deadline for compliance passes

The case of Dupont and Honeywell's refrigerant R-1234yf is doing the exact opposite of keeping things cool. The two chemical companies have spent years and hundreds of millions of dollars developing R-1234yf to replace R-134a, the new refrigerant shown to be 99.7-percent kinder to the environment than the one it is meant to succeed. Part of that development has been years of testing by governments, outside safety agencies and automakers to approve the chemical for use in cars. It passed the protocols necessary for the European Union to declare that new and significantly revised cars from 2013 onward needed to use R-1234yf, and mandated that every car as of 2017 must use it.
Enter Daimler AG. The automaker created a head-on collision test with a B-Class at their Sindelfingen test track that would lead to the pressurized refrigerant being sprayed on the engine. The result in 20 out of 20 test was that the refrigerant burst into flames as soon as it hit the hot engine, while Daimler says that R-134a does not catch fire in the same test. Another unexpected result of the R-1234yf test was the release of hydrogen flouride, a chemical far more deadly to humans than hydrogen cyanide, emitted in such amounts that it that turned the windshield white as it began to eat into the glass.
Said a Daimler engineer in a Reuters piece, "It was scarcely believable. The most complicated lab tests conducted using the most sensitive measuring instruments around found nothing and all we do is drive a car around a couple of times, open a tiny hole in the refrigerant line and the next thing you know the car is on fire." So Daimler said it wouldn't use the refrigerant, and it recalled the cars it had already shipped with R-1234yf.