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Toyota announces new, more efficient powertrains for 60 percent of its vehicles by 2021

In the face of increasingly strict standards on fuel economy and CO2 emissions, Toyota announced today that it's introducing a new hybrid system, a new 2.5-liter direct-injection inline four-cylinder engine, and two new transmissions – an eight- and a 10-speed. The development of all of these components will be based around the Toyota New Global Architecture, or TNGA. Development of the systems has moved forward and the new powertrains will find their way into vehicles starting next year. TNGA, like Mazda's Skyactiv technology, is a complete design philosophy that focuses on more than just a clean or efficient engine. The first vehicle to deploy the TNGA platform was the current, fourth-generation Prius. With TNGA, Toyota focused on improving handling, ride, and braking performance. The new powertrains are meant to compliment this new platform by being both engaging to drive and fuel efficient. Since TNGA can be adapted for front-, rear-, or all-wheel-drive layouts, it's capable of underpinning a number of potential products. Toyota is arguably the leader in hybrid technology, and taking lessons learned in the development of the current Prius, the automaker has developed the new Toyota Hybrid System II, or THS-II, for rear-wheel-drive applications. Performance has improved versus the outgoing model, and Toyota says efficiency, especially at high speeds, has been improved. In addition, the system's use in plug-in vehicles has been improved. For the first time, the electric motor will be able to provide direct driving power, whereas before it simply acted as a generator. The new, naturally aspirated 2.5-liter four-cylinder, like the THS-II, has been designed around the TNGA platform. Most notably, the thermal efficiency of the engine has been improved. This means a higher output and improved exhaust and cooling. The new engine, which works in both traditional and hybrid applications, will proliferate through the Toyota and Lexus lineup. Toyota's two new automatic transmissions, like the new engines, are based on the TNGA system. That means a lighter and more compact design relative to similar transmissions. The 10-speed is intended for rear-wheel-drive Lexus products like the GS and LS. The tuning has been adjusted to improve response and smooth out shifts, though it's impossible to say how much it's been improved without getting behind the wheel.

Lexus resurrecting SC name for big, expensive coupe

Lexus is preparing the SC nomenclature for its third act, after the first bombshell SC coupe from 1991 and the second, Desperate Housewives hardtop convertible evolution from 2001. The brand is aiming again for something that makes a deep mark, with rumored specs pointing to a large, heavy, powerful coupe that will square its spindle grille up against the Mercedes SL and BMW 6 Series. It will be built on the frame of the next-generation LS sedan, and Automobile says internal combustion motivation will come in three flavors. The starter will be a juiced-up version of the company's 5.0-liter, naturally aspirated V8, the one that currently makes 467 horsepower in the RC F. Stepping up from there will be some kind of hybrid powertrain good for around 500 horsepower; last year Motor Trend wrote that the hybrid would be based around a V6 ICE with Toyota's coming "multi-hybrid" system. The top step will be a twin-turbo version of the V8 that could exceed 600 hp. Early reports of dimensions have it at 185 inches long, 75 inches wide, and 53 inches tall. It is expected to use the world's first application of a ten-speed automatic transmission. It'll also get the RC F's torque vectoring mechanism for the rear-wheel-drive setup, though Car and Driver says an all-wheel drive option "might be added later." Aluminum and carbon fiber components will help manage weight. Its design will be inspired by the LF-LC concept, and right now its pricing is as murky as its looks. C/D posits an MSRP from $80,000 to $95,000, Automobile figures it will go "past the $100,000 mark," and MT pegs the situation at $150,000. All agree, however, that it will join the retail pipeline as a 2017 model.

New Toyota Supra may get a twin-turbo Lexus V6

We've heard endless rumors that a successor to the much loved and much missed Toyota Supra is in the works. Toyota hasn't done much to deny these conversations. On the contrary, the FT-1 concept from two years ago and the partnership with BMW have only fueled the fire. Now, talk of a new Lexus engine has led to speculation about the supposed Supra's powertrain. To be clear, this is mostly heresay. Few things have actually been confirmed, but based on what we know a few conclusions can be drawn. We know that BMW and Toyota are working on a joint product. We've seen mules testing out in the wild. In BMW guise, the possibly Austrian-built car will more than likely powered by turbocharged inline four and six-cylinder engines. Unless Toyota wants to use Bimmer power, they'll need to shoehorn one of their own under the hood. That leads us to this rumor of a twin-turbocharged V6 that will presumably power the new Lexus GS and LS. Japanese automotive publication Mag-X first reported on this engine. It was then picked up by YouWheel and Car Keys. Mag-X cites Toyota insiders and even gives an engine code, 943F. This engine allegedly will make more than 400 horsepower and more than 300 lb-ft of torque. While unconfirmed, this makes sense for Lexus. Nearly every luxury competitor has a six-cylinder engine with forced induction. While Toyota has previously had turbocharged inline-sixes, they've never produced a factory turbo V6. Every automaker is downsizing engines in an effort to meet fuel economy and emissions regulations. Toyota and Lexus will follow suit. Taking that V6 and tuning it for a performance application is a solid, if unverified, possibility. Related Video: