Audi R15 & Peugeot 908 HDI FAP - Million-Dollar Diesels
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The Audi R15's all-new 5.5L V-10 diesel (rated to make more than 600 hp and 775 lb-ft) was much more difficult to get a photo of. Audi told us the engine uses the same architecture (twin Garrett turbos, Bosch common-rail injection, aluminum block and cylinder heads) as the R10's 5.5L V-12, but the new engine makes do with two less cylinders, which shortens it 4 inches and reduces its weight by 10 percent. We took note of the new 3-1/2-inch titanium stacks that route the exhaust up toward the rear wing to create additional downforce. View Related Article
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Mercedes GL Research
Being one of the most popular cars in its class, the Mercedes GL offers good performance and quality. The V8 standard engine in the GL gives you 382 horsepower with an estimated 14 mpg. It also comes with comparable safety features. Other similar vehicles are the Volkswagen Touareg and the Jeep Grand Cherokee.
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