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Lexus planning a hydrogen fuel-cell LS by 2017

Toyota's Fuel Cell System will certainly migrate to other vehicles in the carmaker's lineup, but Australian car site Motoring reports that one of the models at the head of the queue is the Lexus LS. According to its sources, the executive barge powered by hydrogen will be released by 2017 and take the top spot in the range, rolling in above the LS Hybrid. We're told that Toyota engineers will find a way to slide two hydrogen tanks into its bodywork with the same general setup as on the Mirai – one under the rear seats and another under the rear parcel shelf. The 150-kW fuel cell stack will be placed under the front seats. Motoring says the resulting sedan and its 220-kW electric motor would come in "at around 2,100 kg," which is 4,620 pounds; that's a ginormous 539 pounds less than the listed curb weight of the current LS Hybrid, and 387 pounds more than the standard LS. Assuming all goes as planned, it would have a range of roughly 238 miles, a few dozens less than the Mirai's range of about 300 miles. It would look slightly different, too, the front end getting larger intakes to cool the power unit. It wouldn't surprise us if Lexus does have a hydrogen LS planned – it would be a statement car, and the company likes making statements, even if few heed them; it has stuck with its LS 600h for the past seven years, yet of the 7,539 LS models sold through the end of November this year, only 61 of them were hybrids. The timing would be intriguing, however; by the time the LS hybrid came out, Lexus had already worked over its filet-and-potatoes models. And if the hydrogen version is going to come in above the $120,440 hybrid, well, that will be a statement indeed.

8 things you should know about the Lexus LC 500h powertrain

Lexus unveiled the LC 500h today in The Netherlands, and I got to take a look inside its new hybrid system. On one hand it seems like a box of magic – it combines two seemingly incompatible transmission types into one package. But that's also the ingenious simplicity of the thing. We don't have all of the details on how it all works yet, but here's a rundown of the high points.Efficient business in front, low-key party in the back. What makes it all work is the mullet of transmissions. For the new hybrid transmission, Lexus used the Toyota Hybrid Synergy Drive/Lexus Hybrid System – which consists of an e-CVT with a planetary gearset and two electric motors (one for charging the battery, the other for motivation and regen) – and grafted a conventional four-speed automatic onto the back. The two units actually coexist in one package, with the e-CVT making things efficient and the automatic expanding the capabilities. So at the low end, the system can deliver more torque, and the engine can also run at lower rpm on the highway. It's all thanks to those fixed gear ratios, and it's surprisingly simple.Except it's not that simple. This is where the virtual gear ratios come in. Like current Lexus hybrids, the system has ratios it can call up with the e-CVT. In this case, there are six virtual ratios to complement the four real physical ratios, for a total of 10 "gears" at the transmission's disposal. (Not coincidentally, the V8 LC 500 coupe has a 10-speed automatic.) One of the four fixed gears is always engaged when the car is moving, so the 10 ratios come about from combinations of what the e-CVT in front and the automatic in the back are doing. In other words, all 10 ratios are variations on the four fixed gear ratios, which means that all 10 gears could be considered virtual.It won't use all the gears all the time. In Eco mode, the car will start off on electric power and skip the first couple of "gears." When it's set to Sport or Sport +, the engine will be engaged from a stop and the transmission will select the lowest ratio. The sportier modes will also ignore the top couple of gear ratios.It can drive faster with the engine off. In a Lexus GS 450h with the Lexus Hybrid System, for example, at speeds above 62 mph or so the engine has to start up. This is because something needs to take up some slack from the battery-charging motor-generator or else it will start spinning too quickly.

Lexus promises to unveil two updated models at Pebble Beach

Lexus has announced it will stage the global debuts of two updated models at Pebble Beach later this week. But it isn't saying which models they will be. However we can take an educated guess or two. Two of the oldest nameplates in the Lexus lineup at present are its flagship models: namely, the LS sedan and the LX sport-ute. The original LS was first introduced back in 1989, with the current fourth-generation model rolled out in 2006. (That's the Pebble Beach edition of the 2009 LS 600h pictured above.) It's undergone incremental updates in the decade since, with the last one having arrived in 2012. With much newer examples of the Mercedes S-Class and BMW 7 Series having recently been launched, Toyota will likely want to keep its flagship sedan up to date and competitive with newer rivals. Meanwhile the LX first launched in 1995 as a rebadged and luxed-up version of the Toyota Land Cruiser. The current third-generation model arrived in 2007, and was updated in 2012 alongside the aforementioned LS sedan. Sales of the LX have been floundering, spurring Lexus to potentially launch an entirely different flagship crossover to take its place. But before that happens, it is expected to launch another facelift for the existing model. Photos of that updated version have already leaked out and begun circulating, so we wouldn't be surprised to see the new LX 570 debut in Monterey as well. Both are expected to adopt more aggressive styling in line with other, newer models in the lineup, along with the latest technologies Toyota has to offer. Whatever form they take, we won't have to wait long to find out what Lexus has in store for us. The unveiling of both its freshly updated new models is set to take place on Thursday, so watch this space. Related Video: MEDIA ADVISORY - LEXUS TO UNVEIL TWO UPDATED MODELS AT PEBBLE BEACH August 10, 2015 -- Lexus plans to stage the global premiere of two updated models in Pebble Beach during the days leading up to the 2015 Concours d' Elegance. The reveal will take place at 7 p.m. PDT, Thursday, Aug. 13, and all materials will be available on www.LexusNewsroom.com simultaneously.