If you followed my trip from Atlanta to Los Angeles
, just completed in an old Mercedes-Benz diesel running on veggie oil, you know I'm a fan of the diesel engine. And since I have great respect for the design, performance, and engineering behind Cadillac's latest CTS
sedan (and stunning CTS Coupe
, and CTS Wagon
...), it pains me to know that you can get the vehicle with a 2.9-liter turbodiesel V-6, but only in Europe. Actually, it makes me cry.
GM of Europe produces the engine, pictured here in polished stainless-steeled, thermoplastic intake manifolded, compact oil-coolered glory. To my eye, it's not only a technological marvel but a work of art.
Emissions regulations, costly catalyst systems to remove harmful NOX, and the unpopularity of diesel fuel in America will probably forever consign this engine to Europe-only duty. But brands like BMW, Mercedes, and Audi are attempting to bring diesel back in America with products like the brilliant BMW 335d
, the Mercedes E320 BlueTEC
, and the Audi A4 3.0 TDI
. 2009 and 2010 should be interesting, hopefully victorious, years for the diesel engine in the U.S.
I wonder if GM would lend me a CTS diesel to drive cross-country on biodiesel? I can dream...--Colin Mathews
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