Subaru officially unveiled the all-new 2015 WRX STI at the 2014 North American International Auto Show in Detroit. Showing the well-known WR Blue Paint and the well-known gold BBS forged alloy wheels. Under the hood, there is a 2.5-liter turbocharged/intercooled 4-cylinder Boxer engine that generates 305 hp at 6,000 rpm and 290 lb.-ft. of peak torque at 4,000 rpm.
The engine is bolted with a specially reinforced 6-speed manual transmission, which includes an STI short-throw shifter in the Launch Edition model. Incline Start Assist can momentarily prevent the car from rolling backward when being driven away from a stop on an incline.
Subaru Intelligent Drive (SI-DRIVE) powertrain management system allows the driver to choose from three selectable modes - “Intelligent,” “Sport” and “Sport Sharp” – using just a rotary dial on the center console. Regarding the design, the 2015 WRX STI shows a bolder look, with narrower headlights, a hexagonal grille, LED low-beam headlights. Just like on the previous WRX STI models, the new vehicle comes with the well-known functional hood scoop that supplies the intercooler with fresh air. Other design highlights include the foglight surrounds with a carbon fiber-like pattern and front fender vents that feature a mesh screen.
The aerodynamic body kit includes a larger trunk spoiler, rear diffuser, LED taillights and LED center high-mount stop lamp (CHMSL). The chassis used by the 2015 WRX STI also comes with a new body structure that makes greater use of high-tensile steel than the previous model and features special stiffening elements at key locations.
As on previous WRX STI models, the 2015 version uses an exclusive inverted-strut front suspension system that provides higher levels of cornering agility. Aluminum front lower L-arms reduce unsprung vehicle weight. The STI-tuned suspension teams with standard 18-inch wheels wrapped in 245/40R18 summer performance tires, while the WRX STI Launch Edition and WRX STI Limited models featuring BBS forged aluminum-alloy wheels.
Inside, the sporty theme is continued with Alcantara seating surfaces accented by red and black leather bolsters and red stitching. Moreover, we find a flat-bottomed steering wheel and an optional harman/kardon premium audio system. A one-inch longer wheelbase than the previous WRX STI helps provide a roomier cabin in the new model. Rear seat legroom is increased by nearly two inches, and trunk capacity is now 12 cu. ft., up from 11.3 cu. ft. in the previous WRX STI sedan.
The STI Design electroluminescent gauge panel gets a new 3.5-in. central LCD screen that displays various functions. A new 4.3-inch LCD screen provides vehicle system functions, including a standard rear camera display, a boost gauge display, audio (on non-navigation models), Bluetooth and climate control settings, and a VDC screen showing traction control operation.
Standard features on for the 2015 WRX STI include dual-zone automatic climate control and the All-Weather Package (dual-mode heated front seats, heated exterior mirrors and windshield wiper de-icer). Moreover, we find a standard audio system combines AM/FM stereo with HD Radio, a single-disc in-dash CD player, 6 speakers, MP3/WMA capability, Radio Data Broadcast System (RDBS), Bluetooth hands-free calling and audio streaming, iPod control capability, iTunes Tagging, SiriusXM Satellite Radio (subscription required), USB port and a 3.5mm auxiliary audio input jack. Numerous compartments located in and around the center console hold phones, USB drives and MP3 players. [source: Subaru]