2003 Mercedes Benz Sl 500, One Owner, Mint Condition, 69,000 Miles Panoramic Top on 2040-cars

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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.

Sunday Drive: Volvo hits a crossover home run, and people still love sports cars

Looking back at the week that just was clearly tells us at least three things. First, crossovers don't have to be boring. Second, people still love sports cars, from the attainable (Audi TT RS) to the fanciful (Mercedes-AMG GT C). And finally, the traditional German trio of premium luxury brands had better not rest on their laurels, because credible challengers are coming in from every direction. The biggest reveal of the week, at least judging by the interest of Autoblog readers, was the Volvo XC40. Not only is the little 'ute a looker, it introduces some innovative new buying/leasing schemes designed to appeal to an audience accustomed to trading in and trading up every couple of years. Think of Volvo's flat-fee lease as you would a smartphone contract, and you'll be on the right track. Genesis looks to have a hit on its hands in the form of the G70 sport sedan. We took a Korean-spec model for a spin and found a lot to like about the upstart contender. We can't wait to sample one here in the United States to see how it stacks up against the Audi A4, BMW 3 Series, and Mercedes-Benz C-Class. In other news, we're still really excited to see a production Ford Ranger Raptor. But if you just can't wait for the official reveal — it's OK, neither can we — take a look at the renderings in our post down below. As always, tune in to Autoblog next week for a front-row seat to all the happenings worth following in the automotive industry. Volvo XC40 revealed | Crossover at the crossroads of style and substance 3 ways the Volvo XC40 is a game-changer Genesis G70 First Drive | An arrow to the heart of the Germans 2018 Audi TT RS Drivers' Notes | Five pots of turbocharged honey 2018 Mercedes-AMG GT C Quick Spin | This is the AMG GT you want The Ford Ranger Raptor is real, and this is what it might look like

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.