There will be one clear theme emerging as auto makers show off their latest vehicles at next month's Australian International Motor Show in Sydney: fuel technology.

"There is significant interest in engine technology and the types of fuel new cars now offer," Federal Chamber of Automotive Industries CEO Peter Sturrock says.

"It’s the first time these cars will be shown in Australia. LPG (liquid petroleum gasoline), diesel, biodiesel, ethanol, hybrid gasoline/electric – you name it. You will see the largest range of fuel types being brought to market this year.”

The show, which runs from Oct. 27 through Nov. 5, is Australia’s largest automotive event and is one of the top 10 auto shows in the world. Up to 300,000 people are expected to attend. More than 60 all-new or updated production vehicles and concept models will be featured from more than 43 individual brands.

Sturrock says this year’s show is particularly important for GM Holden Ltd.'s VE Commodore and Toyota Motor Corp.’s Camry and Aurion sedans.

"These three cars make this show significant because of their export opportunities," he says.

"Toyota and Holden are aggressively looking to expand their exports to the Middle East, Asia, South Africa and South America, and this show forms part of the strategy for some of those initiatives."

Meanwhile, European auto makers will showcase their latest small-car designs in order to capitalize on a shift in Australian buying patterns brought on by rising fuel prices.

Volvo Car's long-awaited C30 hatchback will take the brand into the growing premium small-car segment for the first time. And Automobiles Peugeot will showcase its new 207 hatchback, which will arrive in the first quarter of next year.

Automobiles Citroen will use the show to unveil the all-new C4 Picasso. Meanwhile, Saab Automobile will bring the Aero X concept, a high-performance sports car that combines environmental consciousness with Swedish design.

The Aero X's 2.8L, twin-turbocharged engine is based on General Motors Corp.'s global V-6 mill but adapted to run on 100% bioethanol.

"The technologies featured in concept cars such as the Aero X are not pipedreams, but important pointers to the next generation of safer, greener, more user friendly everyday cars," Sturrock says.