The interior has a functional theme, aimed at enhancing the experience for the driver. There's a flat-bottom leather-wrapped steering wheel, a leather-wrapped shifter exactly where it should be, and a leather-wrapped handbrake to the left of that. The driving mode selector is located just below the shifter, and the button for the torque-split adjustment just beneath that. Within days, you'll be able to interact with these features without taking your eyes off the road. The seats are the sporty, body-hugging kind, in black and red leather. They offer decent support in the corners.
The rest of the interior is made up of basic amenities carried over from the Impreza lineup. These features include dual-zone climate control, heated front seats, keyless access, cruise control, dual USB ports, seven-inch Starlink infotainment with Apple CarPlay, Android Auto, and Bluetooth capability. The Limited model adds navigation, a Harmon Kardon surround-sound system, and an eight-way power-adjustable driver's seat.
The Subaru WRX STI's sedan body does not give it an advantage in terms of interior space, but it gives the Scooby a place to put the large rear wing. The legroom is generous in the front and rear, measuring 43.3 inches at the front and 35.4 at the rear. Headroom is equally ample, rated at 39.8 inches at the front for the base model without the sunroof, 37.2 inches at the front for the model with the sunroof, and 37.1 inches at the rear. The front seats have decent side bolstering for hard cornering, but you can upgrade to Recaro seats if you need something more hardcore. You have to upgrade to the Limited model for a power-adjustable driver's seat. Being a sedan, the STI has big, wide-opening doors, making it easy to get in and out of. Visibility is good, but the massive rear wing makes it difficult to see out of the rear.
|Subaru WRX STI Trims||STI||STI Limited|
|Headroom Front Seat||39.8 in.||37.2 in.|
|Headroom Back Seat||37.1 in.||37.1 in.|
|Legroom Front Seat||43.3 in.||43.3 in.|
|Legroom Back Seat||35.4 in.||35.4 in.|
|Shoulder Room Front||55.6 in.||55.6 in.|
|Shoulder Room Rear||54.2 in.||54.2 in.|
|Hip Room, Front||52.1 in.||52.1 in.|
|Hip Room, Rear||53.1 in.||53.1 in.|
As standard, the 2021 Subaru WRX STI has Ultrasuede/carbon black leather upholstery. The bolsters are red, and they have red stitching. This adds a sporty touch to an otherwise bland, functional interior. In the Limited model, the front seats are upgraded to Recaros, also featuring red leather inserts. In Limited guise, the driver's seat is eight-way power-adjustable. The other sporty touches include a leather-wrapped, flat-bottom steering wheel, as well as aluminum-alloy pedal covers. The rest of the car is pretty average, and nothing special.
You'd expect the WRX STI's sedan shape to have more cargo space than its hatch rivals. The reality is that the hatches easily give it a beatdown in this particular category. The Honda Civic Type R has 25.7 cubic feet of cargo space behind the rear seats, while the outgoing Golf R has 22.8 cubic feet of space. The STI only has 12 cubic feet of cargo space. It's a large enough space, able to carry three suitcases, but weak compared to its direct rivals. This space can be extended by folding the rear seats flat in a 60/40 split.
Overall storage space is merely average. The center console has a large storage area beneath the climate control. The console between the front seats also has two cupholders, while the doors each have a single bottle holder. There is also a rear center armrest with dual cupholders. The glovebox is illuminated and lockable, for storing valuable items.
|Subaru WRX STI Trims||STI||STI Limited|
|Trunk Volume||12 cu. ft.||12 cu. ft.|
As we said before, the WRX STI is unashamedly about the driving experience. Only the essentials are included as standard, but at least they're nice essentials. The base STI comes with dual-zone climate control, keyless entry with a push-button start, cruise control, a tilt and telescoping steering column, STI-specific instruments, a rearview camera, heated front seats and mirrors, and hill start assist. The Limited model adds Recaro seats, eight-way power-adjustment for the driver's seat, blind-spot detection, lane-change assist, rear cross-traffic alert, and a power moonroof. Depending on how much you value comfort and convenience, the Limited isn't a bad choice.
The STI's Starlink seven-inch color touchscreen infotainment system is easy to use and integrates Apple CarPlay, Android Auto, HD Radio, and SiriusXM. You can also stream music via Bluetooth, or the dual USB ports. It also has a CD slot, which many manufacturers don't include these days. The Limited model adds navigation. The base model uses a six-speaker setup, while the Limited model is equipped with a nine-speaker Harman Kardon premium sound system.