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TMG's super Lexus LS Sports 650 gets track tested

The people at Toyota Motorsport GmbH have been responsible for the Japanese automaker's motorsports efforts since the 1970s, but since Toyota pulled out of Formula One after the 2009 season, the tuning shop has been developing a super sedan based on the Lexus LS called the Sports 650. Details on TMG's first road car have been scarce, but XCAR was recently invited to drive the 641-horsepower Lexus on track.
Here's what we know: the Sports 650 has enough power to sprint to 60 miles per hour in under four seconds, tops out at 199 mph, weighs over two tons and utilizes LFA brakes. Oh, and its twin-turbo V8 bellows like an AMG V8. That last part isn't surprising when considering TMG could become Toyota's in-house tuning arm - like AMG is to Mercedes-Benz. As for the bespoke body kit, fender flares and stacked exhaust pipes? They fit the car well and even remind us a bit of Lexus' other high-performance sedan, the IS F. Currently there are no plans for the Sports 650 to be made into a production car, but we doubt TMG is devoting this much effort developing the LS into a road-rocket for nothing.
Check out XCAR's video below to see the AMG-fighter wrung out on track, and then ponder what could be if TMG were let loose to fiddle with other cars in Lexus' lineup. Now that's something we could get used to!

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.

2016 Lexus GS F revealed ahead of Detroit debut

The last time we heard about Lexus' new Detroit Auto Show-bound performance car debut, all signs pointed to GS F. Now, the cat's out of the bag, and we've got the first official images and details of the Japanese automaker's latest performance sedan, and honestly, it's exactly what you'd expect – though that isn't necessarily a bad thing. Power comes from the automaker's 5.0-liter naturally aspirated V8 – the same eight-pot that powers the RC F – good for 467 horsepower at 7,100 rpm and 389 pound-feet of torque that comes on strong between 4,800 and 5,600 rpm. That force is sent to the rear wheels via Lexus' eight-speed automatic transmission. In order to make this F a significantly better-handling vehicle than the standard GS, Lexus is fitting its Torque Vectoring Differential from the RC F, which uses three modes – Standard, Slalom, and Track – to alter torque delivery to better suit different driving dynamics. Lexus has released a few preliminary specifications about the GS F, so we know the sedan tips the scales at 4,034 pounds and will ride on 19-inch wheels with 255/35-series tires up front, and 275/35 rubber out back. This all sounds pretty good, but we can't help feel a wee bit disappointed, especially considering the numbers being thrown down by competitors like the BMW M5 and Mercedes-Benz E63 AMG, not to mention the new 640-hp, 200-mph Cadillac CTS-V that'll also debut at next week's Detroit show. Still, if the Lexus RC F is any indication of the brand's future performance offerings, we don't doubt the GS F will, at the very least, be a super fun car to toss around. Stay tuned for the GS F's official unveiling, next week.