Winning driver Joshua Dowling reports for Autocar on the Global Green Challenge
4 November 2009

A Corvette-powered pick-up isn’t the first vehicle you’d pick to take on an economy run, writes Joshua Dowling, who won the 2009 Global Green Challenge in a Holden Maloo.

There were wry smiles at the start line of the 2009 Global Green Challenge in Darwin last week as the team began a seven-day, 3000km trek across the Australian desert.

Small economical cars such as the a Ford Fiesta and Mini Cooper D looked at first as though they had the contest licked when the Holden Special Vehicles Maloo (a pick-up version of the Vauxhall VXR8; Maloo is aboriginal for Thunder) turned up with a 6.2-litre (that’s the capacity of the engine, not the consumption) V8 and an official fuel consumption of 15.1L/100km, or 18.7mpg.

But in the interest of fairness, the rules for the event state that the vehicles are judged against the official combined consumption figure that appears on the fuel rating label on all new cars in Australia.

Perhaps what the rival teams hadn’t counted on was the determination of the HSV drivers – myself (a motoring hack) and an HSV engineer called Gerry Bechet who, incidentally, helped design the engine in the Fiesta in a former life before trying to make V8s use less fuel while producing more power.

As with most cars in the event, we drove with the windows up (better aero efficiency) and air-conditioning off (saves 0.5mpg). Problem was, it was 40 degrees outside and almost 50 inside. On one leg we almost drank more water than the car used fuel.

Australia might appear flat in the middle but the route had constant rises and falls. So we would ‘bank’ time and speed on downhill runs (between 55 and 60mph) and then crawl up the hills (as slow as 30mph if necessary) all the while concentrating on the instant fuel readout on the dash.

The big V8 ticked along nicely at around 1400rpm in sixth gear, using its torque to good effect and using minimal fuel. Even on the extensive city cycle sections at the beginning and end of the Challenge (where we only used second, fourth and sixth gears) we managed to drive efficiently by reading the traffic and conditions. You wouldn’t drive like that normally but it was interesting to see what is possible with some effort and careful driving.

The result was that the Maloo made a staggering 48.76 per cent improvement on the rating label, having averaged 7.74 litres per 100km (36.5mpg) for the entire journey. The small diesel cars made modest improvements of between 12 and 15 per cent.

Joshua Dowling

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Comments
9

4 November 2009

7.7l/100km is pretty impressive (38-39mpg)! However, by keeping speed down on the highway and having a very changeable speed depending on gradient it was driven in a way that can not be done on most UK roads - if you slowed to 30mph on a motorway gradient someone would ram you.

Impressive none-the-less. I'd have the aircon on though, 0.5mpg is worth it and you might be able to reduce the weight of water carried!

4 November 2009

38 to the gallon is perfectly achievable in one of these. On a steady run, my old HSV GTS used to return around 30mpg on a decent trip in the UK (taking in mostly motorways admittedly).

What is even more impressive is that the Maloo used for the challenge doesn't even have a cylinder shut down facility like other manufacturers V8's.

 

 

It's all about the twisties........

4 November 2009

[quote TegTypeR]my old HSV GTS[/quote]

You lucky thing. I've been tempted by one for good few years. V8 supercar racing is the only racing I can bring myself to watch and if we lived in Australia,there would definitly be a Holden family of cars on the drive lol

4 November 2009

[quote fuzzybear]You lucky thing. I've been tempted by one for good few years. [/quote]

Doesn’t Vauxhall have an equivalent car?

You don’t need a weatherman
To know which way the wind blows
—Robert Allen Zimmerman

4 November 2009

Yes, sorry I still refer to them as Holdens , with or without the Vauxhall badge lol

4 November 2009

Its just where i live there isn't really anywhere local to service them apart from Belfast and im quite far out of the city.Parts are also a bit expensive i hear,but still if I had the time and energy it would make an interesting car to own

4 November 2009

Gm should really consider bringing the Maloo to the states as a Chevy El Camino, it would sell like hotcakes.

You don’t need a weatherman
To know which way the wind blows
—Robert Allen Zimmerman

4 November 2009

[quote fuzzybear]You lucky thing. I've been tempted by one for good few years.[/quote]

Mine was the original press car as used in one of Clarkson's videos. I heard a rumour not so long ago, it was for sale at about £7.5k........ I don't know about you, but I was tempted to buy it back!

 

 

It's all about the twisties........

5 November 2009

Currently have two V8 Commodores. The first is a 2001 GTS, and the second is a 2009 Commodore SS Tourer. Both are fantastic cars, and am really enjoying the new car. After seeing the new Legacy and reading I know I have made the right decision.

The old car is now becoming a bit of a project for me. I have already beefed up the brakes and suspension (although its now riding a little harder) and am currently thinking about a super charger. Watch this space...

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