With so much power at your fingertips, you need huge levels of control. Whether you're taking a winding cross-country road or cruising in the city there is a wide range of easily adjustable precision settings to ensure the most safe and satisfying drive. SI-Drive gives you three engines in one.

Choose intelligent mode for smooth motorway driving and maximum economy. Choose Sport mode for linear accelaration or choose Sport Sharp mode for instant throttle response and free revving.

Multi mode Driver's Centre Control Differential (DCCD) enables you to influence the handling of your WRX STI to suit the road the conditions.

Increased diff lock gives more traction on slippery roads. Reduced lock improves agility on windy roads. Multi mode Vehicle Dynamics Control allows you to determine the extent to which the on-board computers influence torque and traction control.

Its what makes a Subaru, a Subaru. The phenomenal WRX STI heralds a new dawn in pure driving pleasure.

The WRX STI succeeds in extracting every exhilarating ounce of enjoyment from the road. A thrilling 300PS is generated from 6,000rpm via the 2.5 litre DOHC 16 valve BOXER engine with turbo.  Dual Active Valve Control control improves exhaust and combustion performance and a larger intercooler improves engine efficiency. Formidable power though it may be, trademark poise and delectable, pin-sharp handling traits are retained at all times.

For maximum grip and control whatever the conditions, the Subaru Boxer engine is mated to the renowned permanent symmetrical AWD system, providing a lower centre of gravity for supreme poise, balance and all-wheel grip.

This is complemented by a host of cutting-edge features designed to give you ultimate driving stimulation and complete control behind the wheel.

The turbo-charged engine delivers stunning performance throughout the rev range. However, it is its acceleration at low to medium speeds that you will find most satisfying.