At the Tokyo Motor Show, Subaru showed a "prototype" of the next-generation Levorg, itself a Japanese-market wagon derivative of the Subaru WRX sedan. While it gave us a good idea of what to expect from the next WRX, the Levorg STI Sport that will be shown at Tokyo Auto Salon in January should give us an even better look at the hot Subaru we'll get. This is based on the fact that among current Levorg trims, the STI Sport has a front bumper fascia that's more aggressive and that echoes the design of the WRX, whereas the standard trim is more mellow.

So far, Subaru has only released a teaser video of the sportier Levorg. It shows STI badging on the back of the car and on the exhaust tips. There's also a glimpse of the tachometer that shows a redline of just over 6,000 rpm. Since that's lower than the WRX's turbo 2.0-liter engine's 6,500-rpm redline, this is probably the new 1.8-liter turbocharged engine Subaru announced will replace the current base turbo 1.6. It will probably make at least 170 horsepower to match the outgoing model. Based on the current STI Sport engine offerings, this should be the base engine, while the WRX's turbocharged FA20 will be an option.

The full reveal of the Levorg STI Sport will come on January 10. Expect further details on mechanical changes as well, which will hopefully include information on a more powerful engine that could appear in the WRX. We wouldn't be surprised if it ended up using a slightly updated version of the current WRX's 2.0-liter FA20 engine, since even the WRX STI is expected to get a more powerful - probably over 300 horsepower - version of that same engine.