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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.

Toyota may return to F1 under Lexus banner

A new report in from the website Club Lexus claims to have insider knowledge about a return to Formula One racing by Toyota, this time under the auspices of the Lexus brand. Toyota competed in F1 from 2002 through the 2009 season. That final year saw the team return competitive, if inconsistent results, but the larger economic woes in the automotive market made a decision to pull the plug relatively easy at the time.
Now, citing recent interviews with Toyota executives and insider sources, Club Lexus says that the move to re-enter F1 for the 2014 season is "all but finalized." The choice to go with the Lexus nameplate over Toyota makes some sense, too, considering the success that rival Infiniti has had in recent years through its partnership with Red Bull Racing. Further, the emerging Lexus identity as a performance car builder, with a strong background in hybrid vehicles, could help the F1 move resonate with buyers.
A few technological factors and formula changes within F1 offer some credence to the Lexus rumor, too. F1 will increase the available capacity of KERS from 60kW to 120kW, a change that theoretically benefits the hybrid-savvy Toyota. What's more, 2014 will see a switch from the current 2.4-liter V8 engines to 1.6-liter turbocharged V6s. A Lexus team that goes racing in 2014 will be on a level playing field with the rest of the grid then, with all teams adjusting to and continuing to develop the new engines.

Lexus NX small CUV caught

To the untrained eye, these photos might not look like anything more than a Lexus CT 200h undergoing testing, but what we really have here is something pretty significant. According to our spies, this is actually a mule that gives us our first glimpse at the upcoming Lexus NX crossover, a smaller vehicle that will slot below the RX in the automaker's CUV portfolio - presently only one vehicle.
Look closely, and you'll note that this mule has a much higher ride height than the normal CT hybrid hatchback. The upgraded wheels with crossover-spec tires are another dead giveaway that something more robust is being tested in this CT's shell.
Late last year, we learned that Lexus had reportedly trademarked the names "NX 200t" and "NX 300h," which provided a glimpse into the powertrain offerings for the new CUV. Lexus will finally make use of turbocharged power with this new NX - a 2.0-liter turbo-four fitting of the 200t nomenclature. A hybrid variant will almost certainly be available - the 300h - probably using the same 2.5-liter four-cylinder engine and electric motor combination found in the ES 300h. Our spies report that a naturally aspirated, four-cylider version should also be available.