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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.

Optimistic Lexus bumps US sales target higher

Last year Lexus sold 244,166 cars in the US, slotting into third place in the luxury segment behind BMW and Mercedes-Benz. Earlier this year Lexus said its target was 260,000 units in the US (which would still put it behind BMW's and Mercedes' numbers from last year), but Automotive News reports that it has raised its upper outlook to 270,000 cars.
The half-year pace hasn't been enough to make either number, but Lexus is gunning for a 15-percent gain in IS sales behind the arrival of the 2014 model, and this is also the first full year of sales of the new ES and LS. Lexus will most likely end the year in third place in the luxury segment behind BMW and Mercedes again, even if it does sell 270,000 units, but has said its prime directive is "good, steady growth."

Next Lexus RX looks ready to roll

Lexus' bread-and-butter crossover, the RX, has been long overdue for a substantial redesign, with the current third-gen crossover entering its sixth year on sale. Considering this, it's no surprise that the fourth-generation RX is well on its way to production readiness, as evidenced by our latest round of spy photos. This new model looks larger than the current RX, like the wheelbase has been stretched, which would likely explain reports that the company was looking at an optional third-row for the mid-sizer. Aesthetically, the Lexus spindle grille is easy to spot, as are its aggressive headlamps. It's unclear based on these images if the RX will adopt the same styling statement seen on the RC, IS and NX, with sharp LED running lamps mounted below the actual headlights, but it certainly seems likely. Besides the design changes, our spies report that Toyota will be working hard to shed weight, likely through the use of aluminum for the doors, hood and rear hatch. Underhood, expect the typical combo of a gas-powered six-cylinder as well as the V6/hybrid setup found in Lexus' 450h models. As for when we could expect to see the next-gen RX, your guess is as good as ours. Geneva is, as always, a candidate, as is April's New York Auto Show. Of course, should we confirm a debut at either show, we'll be sure to let you know. Stay tuned.