| Hydrogen-powered RX-8
on trial
By UKOHA KALU
Wednesday, November 24, 2004

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RX-8
Photo: Sun News Publishing
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Gradually but surely the end for petrol run engine is fast
approaching. Hydrogen-powered RX-8 coupes will begin testing
in Japan soon.
Although the trials bring hydrogen-powered cars one step closer
to availability, buyers still have many years to wait before
they become a showroom reality.
Hydrogen is seen as a possible cheap and clean stop-gap fuel
while the search goes on for a viable alternative to petrol
and diesel, but its use has been hampered because it is difficult
to store enough of it safely in cars.
Mazda has been given permission to begin testing RX-8 coupés
that can run on either petrol or hydrogen.
It said the RX-8 is an ideal car to be fuelled by hydrogen
because of the design of its unique rotary engine, which has
two rotors spinning in barrels rather than a number of pistons
sliding up and down in cylinders. Temperatures in vital areas
of the engine are lower and therefore the hydrogen is burned
more efficiently.
However, performance suffers when the car is running on hydrogen
and the distance the car can travel without refuelling is
dramatically reduced.
Mazda admitted the engine develops about 70% of its normal
power when running on hydrogen and the RX-8 can cover only
about half its normal range of 250 miles.
However, the rotary engine needs little modification to run
on hydrogen, so there would be no price penalty. The main
problem is that hydrogen refuelling stations are non-existent
in most countries.
Daewoo extends replacement offer
Daewoo has extended its offer to replace cars bought this
year with new Chevrolet-badged equivalents six months later.
Previously scheduled to finish in November, the offer has
now been extended to December 10 and covers a selection of
models from the range.
Register any Kalos, Lacetti or Tacuma before this date and
it will be swapped for a new model next year when Daewoo switches
to the Chevrolet name.
Buyers will be able to upgrade to a higher trim level, a more
powerful engine or a bigger car by paying the difference.
The Daewoo name is being dropped in favour of Chevrolet on
January 1.
...End of the Daewoo?
General Motors (GM) is killing off the Daewoo name in the
UK and elsewhere, replacing it with the Chevrolet badge.
GM already sells Daewoo models as Chevrolets in much of Eastern
Europe, and will switch from the Korean to the American badge
in the UK and all other markets from January 1 next year.
All Daewoo models now on sale will continue to be available
as Chevrolets. They will be sold through a rebranded version
of the existing network, which will also continue to offer
the same after-sales service to new and current owners. Chevrolet
hopes to see this UK network grow from 87 to 100 dealers by
the middle of 2005.
The first new Chevrolet model to launch in the UK will be
a face-lifted Nubira saloon, which will adopt the Lacetti
name used on the hatchback that is already on sale. The Nubira
estate will also adopt the Lacetti tag.
Next up is the three-door Kalos, which is to be unveiled at
the Paris Motor Show next week. It will be joined by an all-new
Matiz city car in April, which will appear in near-finished
concept form in Paris.
A thinly veiled concept 4x4 called the S3X also makes its
debut in Paris. It is similar in size to the Land Rover Freelander
and will go on sale in the UK by the spring of 2006, when
new 1.5- and 2.0-litre diesel engines developed by GM also
arrive.
The company is writing to 115,000 existing Daewoo owners to
explain that their warranty terms and conditions are unaffected
by the switch to Chevrolet branding.
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