The 2015 Subaru WRX brings updates to its interior that coincide with the 2012-2015 Subaru Impreza. The 2015 Subaru Impreza brought a refreshed interior 9 months after the 2015 Subaru WRX was released, so don't be surprised if possibly the 2016 Subaru WRX will have a similar interior featuring Subaru's new Starlink Entertainment System.
Aerial view of the interiors. The 2015 Subaru WRX is on the left, the 2013 Subaru Impreza WRX is on the right.
The center stack is much like the old version. The heating vents have moved to the top of the radio for better air circulation, and the knobs have been improved for better feel and an updated look. The head unit itself is in line for an upgrade to the new Subaru Starlink system in the next year or so.
The gauges have an improved layout that looks higher quality with a new center lcd for information readout depending on what you want to see while looking at your gauges.
The shift knob on the 2013 Subaru Impreza WRX is an STI Short Throw, but you will notice it is still a 5-Speed transmission. The 2015 Subaru WRX has two available tranmissions, a 6-Speed Manual or a Sport Lineartronic Transmission (Automatic w/ Paddle Shifters for high torque).
The 2015 Subaru WRX now comes with a Back Up Camera across all models, a D shaped steering wheel, and a power driver's seat on the Limited model.