The fastest-growing automaker in the U.S. is not only thriving on sales of its SUVs and crossovers but its performance sedans instead. The Subaru BRZ may be a little pity, but the Subaru WRX STI is not after enjoying its best-ever sales year in the U.S. throughout 2015.

The sedan is giving its hatchback rivals Honda Civic Type-R and Ford Focus RS plenty to worry about not just in terms of sales. It is adopting Subaru’s new global platform and is staring at a concrete possibility of getting the new 2.0L turbocharged boxer from its Japan-exclusive sibling the WRX STI S207.

While its current 2.5L boxer block generates 305hp, the smaller displacement unit can push output up to 323hp. It comes with an AWD system that boasts a Multi-Mode Driver Controlled Center Differential, Active Torque Vectoring, and a few driver settings to choose from the Subaru Intelligent Drive (SI-Drive) system.

That doesn’t make the 350hp, 350lb-ft 2016 Ford Focus RS with Ford Performance AWD any less attractive. The Honda Civic Type-R is no slacker as well, cooking up 306hp and 295lb-ft torque.