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Subaru - Fastest, Most Powerful Impreza Ready to Roll

Subaru’s fastest and most powerful Impreza ever – the WRX STi ‘WR1’ – is about to enter dealer showrooms in UK, with more than half of the 500 limited run already spoken for. The special edition Impreza WRX STi celebrates Petter Solberg winning the Driver’s Title in the 2003 World Rally Championship. It features a power upgrade to 320 bhp plus a host of technical and visual upgrades and costs £29,995 (approx. $54,000) on-the-road.

First unveiled in January at the ‘Autosport’ show in UK, the Prodrive-developed ‘WR1’ has just received official Subaru (UK) engineering approval after recording the best performance figures ever for a road-going UK-spec Impreza.

For example, 60 mph is reached in an astonishing 4.25 seconds with the 0-100 mph time at an equally impressive 10.67 seconds. Prodrive technicians also logged a quarter mile time of 12.8 seconds while the top speed is limited to 155 mph.

Peak power for the ‘WR1’ is 320 bhp at a relatively low 5,800 rpm, with maximum torque or pulling power of 309.8 lb-ft at 4,000 rpm.

Other test track statistics see the ‘WR1’ shaving 0.7 seconds off the STi’s 30-50 mph time in 4th gear – down to 4.0 seconds – and 0.8 seconds off the 50-70 mph time in 5th – now 4.6 seconds.

Finally, illustrating its supercar-like performance, the new ‘WR1’ boasts an 80-100 mph time of a staggering 3.6 seconds in 4th gear and 6.5 seconds in 6th (4.6 and 7.8 seconds for the 265 bhp STi).

The ‘WR1’s extra power and torque are achieved thanks to a revised engine control unit (ECU), high-flow catalyst and sports silencer.

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