Heuberger Motors, Inc

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Driving Impressions

The Subaru WRX has always been a blast to drive, and the all-new 2008 model won't disappoint. Long-time automobile enthusiasts who haven't driven something really new in the last five or six years might be amazed by the performance in these moderately priced small cars, and all aspects of it: acceleration, handling and braking. Yet this WRX is more a complete package than ever. Even the super-quick STi is much easier to live with for daily driving. Hardcore sport-compact enthusiasts might lament this new-found civility, but mainstream buyers will find it much easier to embrace.

The refinement is apparent from the first turn of the key. Where the old STi had almost the hollow, reverberating sound one expects inside a stripped-out race car, the 2008 sounds more like the typical family sedan inside, except for the more aggressively tuned exhaust tone. And it's not just a reduction in engine noise. All WRXs now have windows framed into the doors, rather than a door structure that stops where the windows start sliding out. All models are fitted with a full undertray that smoothes airflow beneath the car, and we suspect there is more sound insulating material than ever. Road and wind noise have been reduced considerably at all speeds.

This WRX continues Subaru's tradition of horizontally opposed engines, meaning the cylinders are laid flat with the pistons on each side moving in opposite directions (same as the engines in Porsche's sports cars). Like all engine designs, this one has advantages and disadvantages. One of the advantages is compact size, and the prospect of installing the engine low in the car. Flat-four engines have a distinctive, loping vibration pattern that can quickly be distinguished by motorheads, though like all the vibrations in the new WRX, it's more muted than ever.

At face value, the engines don't seem to have changed much. Output in the standard 2008 WRX 2.5-liter four (226 horsepower, 224 pound-feet of torque) is identical to that of the previous model. Horsepower with the STi increases by 12 to 305 hp, with 290 lb-ft of torque. In both cases, it's a lot of power for the engine's size, yet the figures don't say much about improvements to the WRX engines. Both versions are now 50 pounds lighter than before (other things equal, that means better gas mileage), and fitted with the latest-generation control electronics to improve overall efficiency and reduce emissions. Perhaps more significantly, the power curve has been broadened, so the power is available sooner on the rpm scale, and over a wider range. The acceleration-producing grunt comes sooner, and stays strong as the engine continues to rev.

The same sort of transparent refinement has been applied throughout the WRX's mechanical and electronic systems. For the first time, a single management program controls the electronic throttle, the full-time all-wheel-drive, and the Vehicle Dynamics Control. Even the antilock brakes are integrated. That allows a host of possibilities that can enhance safety and improve handling and overall performance.

The standard WRX takes care of just about everything for the driver, leaving the choices to the computer chip. The STi, on the other hand, lets the driver sort through a bunch of options using a series of buttons on the center console.

One STi feature, called SI-Drive, allows a choice of three maps for the electronic throttle, ranging from commute grade to extra aggressive. This allows the driver to control how much the engine accelerates with a given movement of the gas pedal: smooth, mild response to big dips on the pedal, or major acceleration with small dips. The VDC also offers choices: Standard, Off, and Performance, which allows enough wheel slip to slide the car but still tries to gather things up if it gets too sloppy. A manual adjustment for the center differential controls how much of the power is sent to the front or rear wheels, as it is in a

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