2010 Lexus Gx 460 4wd Lexus Certified on 2040-cars

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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.

Autoblog Podcast #339

Farewell, Zach Bowman; Pikes Peak 2013; Datsun; 2014 Ram lineup
Episode #339 of the Autoblog Podcast is here, and it's the last rodeo for Zach Bowman before he departs for other pastures. The crew this week consists of Dan Roth, Zach Bowman and Jeff Ross, who talk about the astounding records set at this year's Pike's Peak hill climb, the return of the Datsun brand name and the recently-announced 2014 Ram truck lineup. Of course, we start with the garage and end with your questions and comments. For those of you who hung with us live on our UStream channel, thanks for taking the time. You can follow along after the jump with our Q&A. Thanks for listening!
Autoblog Podcast #339:

Lexus to replace GX SUV with new TX crossover

There's been a lot of news regarding future Lexus products recently, including spy shots of new RC coupe and NX compact crossover, and reports that a 2+2 coupe based on the LF-LC concept is heading for production. Now, Automotive News says that Japan's #1 luxury automaker is planning to replace the fullsize, body-on-frame Lexus GX SUV with a three-row crossover called the TX.
The article says that the GX, which is based on the foreign-market Toyota Land Cruiser Prado, will get a styling update for 2014 before being phased out in 2016. In a similar move as Infiniti made with its new three-row JX/QX60, the new TX will be car-based, but details are still unknown as to whether it will be front-wheel-drive riding on the Toyota Avalon platform or rear-wheel-drive using the Lexus GS platform. Either way, this new luxury crossover could join the Lexus lineup as soon as late 2016.