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Mercedes F1 to use Qualcomm 5 GHz WiFi for its tire data

In Formula 1 you need more of everything. More speed, more grip, more hospitality, more money. And you need data, reams and reams of data. The Mercedes-AMG Formula 1 team – the guys with the silver cars driven by 2015 F1 champion Lewis Hamilton and his teammate Nico Rosberg – need so much information that they've teamed with Qualcomm to wirelessly upload thermal imaging data of its tires. During a typical race weekend Mercedes's two racecars will generate approximately half a terabyte of data. Live telemetry has been a feature of Formula 1 for 20 years, though there are more restrictions on it than in the past. (In the days leading up to last weekend's United States Grand Prix in Texas, Formula 1 major domo Bernie Ecclestone said that F1 needs to cease being an engineering war and return more responsibility to the drivers.) Nevertheless, F1 teams gather vast amounts of data during a race weekend, particularly in practice sessions during which restrictions on what they can upload from cars – from engine/power unit parameters to aerodynamic loads – are less prohibitive. For example, during a typical race weekend Mercedes's two racecars will generate approximately half a terabyte of data. Mercedes F1 technical director Paddy Lowe points out that the standard telemetry system simply doesn't have the bandwidth to handle the thermal tire imaging data that the onboard thermal cameras generate. Why do you want a thermal video of the tires? Because it tells the engineers and drivers precisely how much temperature there is across the surface of a tire during a lap, in corners and on the straights. It also indicates how quickly the tires come up to temperature and when they potentially overheat. Understanding the temperature variations allows the team to set the cars up optimally for grip and tire life during a stint. Qualcomm's system works with the race cars like this: Each car has forward- and rear-facing cameras in a winglet mounted on the left side of the engine intake behind the driver's head, which continuously record thermal images of the tires. As a Mercedes enters the pit lane, it passes a Qualcomm 802.11ac WiFi receiver to which it uploads the thermal data. As the car nears the garage, another receiver takes over the upload. Several Qualcomm Snapdragon 805 processors crunch the raw data as it uploads. The data is encrypted – there are always prying eyes in Formula 1.

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.

Vettel steals victory from Hamilton in Australian Grand Prix

MELBOURNE, March 25 – Sebastian Vettel made full use of the virtual safety car to sneak in front of Lewis Hamilton and hold off the frustrated champion to win Formula One's season-opening Australian Grand Prix on Sunday. The Mercedes engine's infamous 'party mode' that delivered Hamilton a blistering pole lap on Saturday could do little once Ferrari's Vettel nosed ahead when re-entering from pit-lane midway through the race at Albert Park. Pole-sitter Hamilton had appeared set to coast to victory with a clear pace advantage but the race turned on its head with the safety car, which was called after Romain Grosjean's Haas failed and rolled to a stop at turn two. In another bonus for Ferrari, Kimi Raikkonen finished third, fending off Red Bull's Daniel Ricciardo and leaving the unlucky Australian still searching for a first podium in his home race. "We got a bit lucky." Four-times world champion Vettel claimed a 48th overall win and his third in Melbourne following his victories at Albert Park last year and in 2011. "It was needless to say we got a bit lucky with the timing of the safety car," the German, who had started from third place and inherited the lead when Hamilton and Raikkonen had pitted earlier in the race, told reporters. "It's not the easiest track to pass." For Hamilton, the result was a bitter pill to swallow and had echoes of last year's race. Vettel also managed to re-enter in front of him from pit-lane in 2017 before burning away to victory while the pole-sitting Briton was blocked by traffic. Mercedes boss Toto Wolff said his team had miscalculated the margin between the cars during the safety car period. "We thought we had enough margin," he told the BBC. "It must have been a software bug in the system that caused us to get it wrong. We are digging deep now to understand where we had a problem." "I don't understand what's happened." Hamilton, who cockily spoke of "wiping the smile off" Vettel's face with his pole lap on Saturday, battled to keep positive. "Even now I don't understand what's happened," the 33-year-old told reporters. "I did everything I believe I was supposed to do." After the pit-lane setback, Hamilton drove hard to reel in Vettel and battled back after taking a slide at a corner that blew out the lead to nearly three seconds. But he finally waved the white flag in the closing laps to preserve the car for future races.