Spy shots and teasers preview the new Subaru WRX STI S209 ahead of its Detroit debut. The latest image shows the range-topping STI completely uncovered, hidden only by a few shadows. We know that this new Subaru will be quick – reports suggest the S209 could have upwards of 324 horsepower (241 kilowatts) and 319 lb-ft (433 Nm). We'll know all the details when it shows up in Detroit sometime next week.