Even experienced rail-riders find it difficult to get aboard modern trains driven by diesel engines which gather speed more rapidly than the steam trains of the old days.

ECONOMIST: Irving Stevens

Last year, Audi broke new ground with the first diesel-powered winner, driven by Frank Biela, Marco Werner and Emanuele Pirro, and McNish says he rates their chances of more success.

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For every mile driven, a turbocharged diesel burns 29% less fuel and spits out 20% less CO2 than a standard gasoline engine.

FORBES: Turbocharging China

In the power systems business that manufactures and sells a variety of engines and diesel-electric locomotives, sales were driven by petroleum and rail applications.

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