False Econ­omy

4 x 4 Australia - - Driven -

THE fuel-con­sump­tion fig­ures on the yel­low wind­screen la­bels on all new cars sold in Aus­tralia re­late to Aus­tralian De­sign Rule 81/02. In this test, the ve­hi­cle isn’t driven in the real world but in­stead run through a test se­quence in a lab, on rollers.

The test cov­ers a the­o­ret­i­cal 11km and is done in two parts; the Ur­ban Cy­cle con­sists of a cold start then a se­ries of ac­cel­er­a­tions, steady speeds, de­cel­er­a­tions and idling. The max­i­mum speed is 50km/h, the av­er­age is 19km/h and the dis­tance ‘cov­ered’ is 4km.

The Ex­tra-ur­ban Cy­cle is con­ducted straight after and con­sists of steady speed for about half the test, with ac­cel­er­a­tion, de­cel­er­a­tion and idling for the other half. The av­er­age speed is 63km/h with one spike to 120km/h. The dis­tance is 7km.

The Ur­ban and Ex­trau­r­ban fig­ures are quoted sep­a­rately and tal­lied for the Com­bined Cy­cle. Com­bined Cy­cle fig­ures are con­sis­tently lower than real-world fig­ures, the dis­par­ity seem­ingly in­creas­ing with en­gine and driv­e­train so­phis­ti­ca­tion.

The ba­sic Prado gets most things right. Dated in­te­rior is out­classed in seg­ment.

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