In markets outside the USA, MINI diesel power plants have offered buyers
additional options when it comes to saving fuel. From the frugal MINI
Cooper D, to the more sporting MINI Cooper SD, the oil burning versions
of the MINI have been objects of desire for many a state-side MINI fan.
Personally, some of the most fun I’ve ever had in a MINI was motoring up
the German Autobahn in a MINI Cooper SD Clubman. All that torquey grunt
in such a light, small car made for a very fun package.

While we still don’t get the diesels here in the American market,
there is hope on the horizon. MINI USA has said repeatedly that they’re
working hard to make a business case to bring diesels across the pond.
While that case hasn’t been viable on the current generation cars,
there’s a good chance we’ll see oil burning MINIs at some point in this
next generation, starting with the F56. Although the catch 22 is that
from what we understand of the F56, it’s already going to get
diesel-like mileage, without all of the diesel foibles like urea
injection that are required to make it CA legal here in the US.
Meanwhile, a begrudged congrats to our choorts in the UK. We hope you’ve
enjoyed your diesels.
Official release from MINI UK: One man, one engine, and no
end of anniversaries: it was 120 years ago that Rudolf Diesel started
developing the compression-ignition engine that was soon to be named
after him. The very first prototype completed its test run in August of
that same year. The first diesel engine factory was founded 115 years
go. The engine invented by Diesel was used in ships for the first time
110 years ago, and it has been 90 years since the first diesel-powered
truck went on the road. The MINI was first fitted with a diesel engine
ten years ago. Each of these anniversaries is reason enough to celebrate
the qualities of the diesel engine – and to commemorate its inventor,
who died exactly 100 years ago.

Maximum efficiency was the driving force that inspired Rudolf Diesel
to develop his novel engine. His design was based on heating the air in
the combustion chamber by means of compression to such an extent that
the fuel around it would ignite and release large amounts of energy.
This is why the diesel engine has such a high level of efficiency. The
fact that this principle also generates hallmark MINI driving fun was
first demonstrated in the summer of 2003, when the MINI One D was
presented as the first diesel model of the premium British small car
brand. Its 1.4-litre all-aluminium turbodiesel with common rail direct
injection had an output of 55 kW/75 bhp. It combined the characteristic
MINI go-kart feeling with an average fuel consumption on the EU test
cycle of 4.8 litres per 100 kilometres.
But this was just the beginning of the diesel engine’s career in the
MINI. Two years later the MINI One D was upgraded to 65 kW/88 bhp, and
though its performance figures increased, fuel consumption remained
constant. 2007 saw the launch of the next stage of development: the
Geneva Motor Show was the setting for the world premiere of the MINI
Cooper D. In this model, the new 1.6-litre turbodiesel now delivered 80
kW/110 bhp. The car’s fuel consumption was reduced yet again in spite of
a 25 per cent increase in power output, while 4.4 litres per 100
kilometres once again put MINI ahead of the competition in terms of
efficiency.

Thanks to MINIMALISM, however, this was still not the last word. The
current MINI models with diesel engines are fitted with further refined
injection technology, turbochargers with variable turbine geometry, auto
start/stop function, shift point display, brake energy regeneration,
on-demand operation of ancillary units, electromechanical steering and
cutting-edge exhaust gas purification technology. The result: 120 years
after Rudolf Diesel made his pioneering invention, the engine of the
MINI Cooper D provides an impressive peak output of 82 kW/112 bhp, a
maximum torque of 270 Newton metres at 1,750 rpm , a fuel consumption on
the EU test cycle of 3.8 litres per 100 kilometres and CO2 emissions of
99 grams per kilometre.
As MINI diesel technology was consistently refined, the variety of
engines which functioned according to this principle increased. There
are now three diesel engines available to choose from for the MINI.
Their common design features reflect the outstanding development
expertise of the BMW Group in the field of engine technology. An
aluminium crankcase, turbocharger with variable turbine geometry, common
rail direct injection with solenoid-valve injectors and a powerful
engine control system geared towards each specific model guarantee a
level of efficiency which impressively confirms Rudolf Diesel’s vision
of an “ideal thermal machine”.
The latest generation of the MINI One D is powered by a 1.6-litre
engine which delivers 66 kW/90 bhp and a maximum torque of 215 Newton
metres that goes on stream at 1,750 rpm. Fuel consumption and CO2
emissions are the same as those of the 82 kW/112 bhp MINI Cooper D. The
entry-level diesel engine is also available in the models MINI Clubman
and MINI Countryman, transferring its power via a 6-speed manual
transmission in each case. For the MINI Cooper D there is also the
option of a 6-speed automatic transmission which is combined with a
2.0-litre version of the 4-cylinder engine in each model version. The
choice between the two variants applies to the MINI, MINI Clubman, MINI
Convertible, MINI Countryman and MINI Paceman.
The latest and most powerful way to experience the kind of pulling
power and efficiency so typical of a diesel engine is provided by the
MINI Cooper SD. Also operating with a capacity of 2.0 litres, this
4-cylinder power unit generates a peak output of 105 kW/143 bhp and
provides a maximum torque of 305 Newton metres between 1,750 and 2,700
rpm. And this engine offers exemplary economy as well as supreme power
delivery. The MINI Cooper SD sprints from zero to 100 km/h in just 8.1
seconds, achieving a top speed of 215 km/h. Its average fuel consumption
on the EU test cycle is 4.3 litres to 100 kilometres, with CO2
emissions of 114 grams per kilometre.
The most powerful diesel in the MINI engine portfolio is available
for all seven models – the MINI, MINI Clubman, MINI Convertible, MINI
Coupé, MINI Roadster, MINI Countryman and MINI Paceman. In each model it
is combined as standard with a 6-speed manual transmission or else an
optional 6-speed automatic transmission. Its power can also be
optionally transmitted to all four wheels by means of the all-wheel
drive system ALL4 in the MINI Cooper SD Countryman and the MINI Cooper
SD Paceman.
As the range of variants has expanded, so the popularity of the
diesel engine in MINI models has continuously increased. Despite the
fact that the market for this engine type is largely focused within
Europe, nearly one in four MINIs supplied to customers in 2012 was
fitted with a diesel.