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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.

Lewis Hamilton needs to step up in his 200th F1 race

LONDON — Lewis Hamilton will start the 200th grand prix of his Formula One career in Belgium this weekend, but the triple world champion has smaller but more significant numbers on his mind. Refreshed from an August break in the Caribbean, including a trip to Cuba in his role as UNICEF ambassador, the Mercedes driver is 14 points behind championship leader Sebastian Vettel as he revs up for the second half of the season. A fifth victory of 2017 for the Briton would put the pressure back on Ferrari's Vettel, and Hamilton can celebrate another milestone by bagging pole position on Saturday at the long and fast Spa-Francorchamps circuit. That would see Hamilton, who sportingly relinquished third place to team mate Valtteri Bottas in Hungary before the summer shutdown, match the record of 68 poles set by Michael Schumacher with Ferrari in 2006. Mercedes has won the last two Belgian Grands Prix, with now-retired 2016 world champion Nico Rosberg triumphant from pole last year after Hamilton won in 2015. Nobody will be taking anything for granted, however, after Ferrari's one-two win in Budapest at the end of July. "On paper, people will assume that Spa should suit our car because it is a circuit where aerodynamic efficiency is extremely important," Mercedes team boss Toto Wolff said. "But assumptions are dangerous — we have seen too many times already this season that the form book can be rewritten from one weekend to the next. So we will be making no assumptions." Hamilton has won twice before at Spa, as has Vettel, but the track — a classic blast from the past — has not been particularly kind to him. In 2008, when he won his first title, the Briton was demoted from first to third after the race for cutting a chicane, with then Ferrari rival Felipe Massa savoring victory instead. Spa can often be a lottery, with its capricious weather, and rain could be a boon for Red Bull's Belgian-born Dutch teenager Max Verstappen, who can count on plenty of local support in what amounts to a home race. "I just love the track and it'll be nice seeing so many orange (Dutch) fans in the grandstands," he said. "Spa is my favorite track of the year. You have to get everything right but when you get a good lap it's very rewarding." Belgium could also be good for Ferrari's Kimi Raikkonen, who arrives with a new contract for 2018 in his pocket.

2021 BMW M3 and M4 vs all the high-powered sport sedans and coupes

Should you have a found a way to get past that schnoz, you've probably digested some of the basic specs for the all-new 2021 BMW M3 sedan and M4 coupe specs. They're plenty impressive. There's also, basically, two sets of them thanks to the regular and Competition versions that differ in engine output and transmission type.  But how do they compare to other ultra sport sedans and coupes? Well, we were wondering that too, so we fired up the Autoblog Comparison Spreadsheet Generator 5000 (aka me chained to my computer in a dark basement).  Sadly, there are surprisingly few competitors for the 2021 BMW M3. Rival sedans include the Mercedes-AMG C 63 and the Alfa Romeo Giulia Quadrifoglio, along with the Audi RS 5 Sportback sedan/coupe/hatchback thing. There's no more Lexus IS F, the Cadillac CT4 Blackwing has yet to arrive and Jaguar doesn't offer a spicy XE R.  Happily, there are more coupe rivals for the 2021 BMW M4, including the two-door versions of the AMG and Audi as well as the Lexus RC F. I also included the Ford Shelby GT350 and Chevrolet Camaro SS 1LE. On paper, they align incredibly well. On the street and on a track, I can personally attest that these Americans are fully capable of keeping up and/or bettering the fancy-pants luxury brands (and let's not forget there are even more powerful, hardcore versions available). If they don't align in terms of price or prestige, whatever. OK, let's get to the spreadsheet. Let's start with the coupes and note that I didn't bother listing the dimensions for the M4 Competition and C 63 S as they are identical to their "lesser" siblings.  I won't bother burning words explaining what you can see on the chart. Instead, I'll point out a few things that stood out to me. First, BMW M comes awfully close to matching the output of AMG's twin-turbo V8 despite having two fewer cylinders. Similarly, Audi manages to better the 0-60 time of the M4 Competition and tie the C 63 S despite being WAY down on power. It's not like it weighs less. Magic? Second, and speaking of 0-60 times, remember the importance that transmission and drivetrain make with them. It's not just horsepower and torque. An automatic will be quicker and easier to launch than a manual, while all-wheel drive provides more instantaneous and beneficial grip.