The Volkswagen Jetta TDI Clean Diesel has been honoured at the Los Angeles Motor Show by the Green Car Journal, being crowned '2009 Green Car of the Year'.
The Volkswagen Jetta, which takes centre stage at the Los Angeles Show this month, is the first diesel vehicle to receive the prestigious award.
A jury of nine environmental and automotive experts from North America commended the Jetta TDI for its strong performance, fuel economy and low emissions.
Ron Cogan, editor and publisher of Green Car Journal commented: "Hybrids have dominated the discussion of environmentally positive vehicles in recent years. The highly fuel efficient, 50 state emissions certified Jetta TDI shows that advanced clean diesel has arrived and is poised to change this dynamic. With its affordable price point, refined ride and handling, and high fuel economy, the Jetta TDI shows that hybrids now have a strong competitor in the marketplace."
The Volkswagen Jetta uses a 2.0-litre four cylinder common rail TDI engine producing 140 PS and 320 Nm (236 lbs ft) of torque at 1,750 rpm. Two key modifications have been made to the 'Clean Diesel' engine to substantially reduce the Nitrogen Oxide (NOx) emissions.
The common rail engine in the Volkswagen Jetta TDI clean diesel adopts optimised combustion chamber geometries and precise injection processes at extremely high pressures reduce the production of NOx. An exhaust gas recirculation process in the combustion chamber then reduces the concentration of oxygen with which the nitrogen can react and controls the combustion temperatures. This process can reduce temperature-dependent NOx emissions by up to 60 per cent.
As a further measure to reduce emissions, a highly-efficient NOx storage catalytic converter soaks up any nitrogen oxides which remain. This filter is cleaned regularly, and without the driver knowing, through an automated engine management mode.
These modifications make the Volkswagen Jetta TDI one of the cleanest and most fuel efficient vehicles on sale in North America. It meets the strictest emissions regulations in the world including BIN5 standard, which is equivalent to the Euro 6 standard which becomes law in 2014.
The Volkswagen Jetta continues to enjoy sustained popularity in the North American market, enjoying popularity primarily with younger buyers. It is the best-selling European vehicle in the US, accounting for 40 per cent of Volkswagen's US sales. The Volkswagen Jetta TDI with Clean Diesel has been available across North America since August 2008.
"It is a tremendous honour to have our Jetta TDI awarded Green Car of the Year," said Stefan Jacoby, CEO, Volkswagen Group of America. "We believe the Jetta TDI provides our customers with the best of both worlds - excellent fuel efficiency combined with a dynamic driving experience."
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