BMW will show new 1.4-litre petrol and PSA 1.6-litre turbodiesel-powered versions of the recently redesigned Mini range at the Geneva motor show in March.


Apart from the switch from Toyota to PSA for the diesel – it’s from a joint venture line shared with Ford and close relatives are used in Mazda and Volvo models as well – the entry level Mini One now has a smaller engine than its Cooper siblings and the diesel now comes with sportier Cooper rather than base One trim.


The entry-level 1.4-litre petrol engine develops 95hp while the 1.6-litre turbodiesel puts out 110hp.


The 1.4-litre Toyota-powered Mini One D’s ‘official’ EC combined fuel consumption was 58.9mpg, but the new PSA-powered Cooper D scored 64.2mpg. A CO2 figure of 118 g/km puts the car in the UK’s tax band B.


The 1.4-litre petrol Mini One – with in-house-made engine – also drinks and emits less than its 1.6-litre predecessor with Brazilian Chrysler-built motor. BMW claims 49.6mpg is achievable from the One’s new 1.4-litre unit, compared to 41.5mpg previously, while CO2 emissions are now 138g/km compared with 164g/km produced by the previous model.

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Both models will be on sale from April 2007.


Under normal conditions, the new Cooper diesel achieves peak torque of 240Nm between 1,750 and 2,000rpm but a clever overboost function gives an additional 20Nm of torque – 260Nm at 2,000rpm – and equal to that of the 1.6-litre petrol Cooper S model.


The turbocharger has variable turbine geometry and its common rail diesel system works at a maximum pressure of 1,600 bar using a precise multiple-injection process for each operating cycle.


A diesel particulate filter eliminates most emissions and makes the new engine one of the most environmentally friendly engines in its class, according to Mini parent company BMW.


Both new models have a standard six-speed manual gearbox while the One offers an optional six-speed automatic transmission with ‘steptronic’ sequential-shift, which can change gear using the gear lever or paddles on the steering wheel. A sports button can sharpern gearshift parameters, too.


Distinguishing features include an emphasis on black exterior items for the One and a power dome and larger air intake on the Cooper D, which also has a crossbar in body colour on the lower intake.


Mini UK took orders for about 7,000 of the redesigned models from the mid-November launch until the end of 2006.