Im­preza wait worth­while

The Courier-Mail - Motoring - - CARS GUIDE - Mark Hinch­liffe

WHILE Subaru has added its Boxer diesel en­gine to its fourth model in Europe, Aus­tralia has to wait un­til Novem­ber for its diesel model.

The Im­preza has just joined the Euro­pean diesel line-up of Legacy, Out­back and Forester.

Subaru Aus­tralia na­tional cor­po­rate af­fairs man­ager David Row­ley says there has been no hold up on the diesel.

‘‘We flagged last year that the new­gen­er­a­tion Out­back diesel would ar­rive later this year and that’s still the plan,’’ he says.

The Out­back 2.0D will go on sale in early next month.

‘‘We’ll eval­u­ate the level of cus­tomer in­ter­est and then make a de­ci­sion on other cars in the rage, with Forester be­ing the next most likely can­di­date, but not be­fore well into next year,’’ he says.

The 2.0-litre Boxer diesel en­gine in the Im­preza is claimed to achieve fuel econ­omy of 5.9L/100km with CO2 emis­sions of 155g/km which is 20g less than a Corolla.

It’s no slouch ei­ther with 112kW of power and 350Nm of torque be­tween 1800 and 240 revs, pro­pel­ling it to 100km/h in nine sec­onds and a top speed of more than 200km/h.

The hor­i­zon­tally op­posed four­cylin­der en­gine sits flat and deep in the en­gine well with a vari­able ge­om­e­try tur­bocharger and cat­alytic con- verter mounted un­der­neath for a low cen­tre of grav­ity.

Cou­pled with sym­met­ri­cal all-wheel drive, this im­proves han­dling and trac­tion.

Subaru claims the flat-four lay­out with hor­i­zon­tally-op­posed pis­tons can­cels out sec­ond har­monic vi­bra­tion which means there is no need for heavy bal­ancer shafts.

Apart from re­duced diesel noise, it also en­sures a lively throt­tle re­sponse.

The 1998cc Boxer diesel has an 11mm longer stroke and 6mm smaller bore than the 1994cc petrol en­gine.

Cylin­der bore spac­ing is re­duced so the en­gine block is 61.3mm shorter at 353.5mm.

It uses a com­mon-rail fuel-in­jec­tion sys­tem with fuel pres­surised at 180MPa.

The vari­able noz­zle tur­bocharger en­sures the cor­rect boost at all en­gine speeds and plac­ing it be­neath the en­gine con­trib­utes to the Im­preza’s low cen­tre of grav­ity, where it also con­nects di­rectly to the cat­alytic con­vert­ers, boost­ing en­vi­ron­men­tal per­for­mance.

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