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Mercedes prepares to crush all rivals

The fuel economy wars are heating up, and we can partially thank (or blame depending on your view point) the U.S. government for increasing fuel efficiency. According to Edmunds, Mercedes Benz is looking to significantly boost fuel efficiency for the turbodiesel variant of its restyled 2014 E-Class luxury sedan.
 
The outgoing 2013 E350 Bluetec features a 3.0-liter V6 turbodiesel that produces 206 hp and 400 lb-ft of torque. It's enough to give the 4,000-lb sedan EPA ratings of 22 mpg city and 32 mpg highway.
 
However, the new 2014 E250 Bluetec 4Matic gives up two cylinders and a bit of power and torque to significantly boost highway fuel economy. The 2.1-liter, 4-cylinder turbodiesel engine uses twin sequential turbochargers to generate 195 hp and a still impressive 369 lb-ft of torque, however, highway fuel economy skyrockets to 45 mpg.


2014 Mercedes E-Class
 
Projected city and combined fuel rating are not available, but we expect those figure to rise sharply as well.
 
The 45 mpg highway rating makes the E250 Bluetec 4Matic even more fuel efficient than the lighter, less powerful Volkswagen Passat TDI which has an EPA highway rating of 43 mpg. And as its name implies, the E250 Bluetec 4Matic manages that lofty figure with the added heft of an all-wheel-drive system.
 
Mercedes has yet to announce pricing for the 2014 E250 Bluetec 4Matic, but the 2013 model starts at a $52,200 and lacks AWD.

Source: Edmunds



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RE: Puts VW's 2.0-liter to shame
By 91TTZ on 5/21/2013 9:15:42 AM , Rating: 2
quote:
Me, I'm happy enough with the 230mpg in my Volt, but then it fits my use case pretty closely.


Your Volt does not get 230 mpg or anything close to it. Here are the specs from Chevy's own website:

EPA MPG Equivalent - City 101
EPA MPG Equivalent - Combined 98
EPA MPG Equivalent - Hwy 93
EPA est. Fuel Economy - Combined 37 MPG
EPA est. Fuel Economy City 35 MPG
EPA est. Fuel Economy Highway 40 MPG

The best case scenario is that you'll do all city driving, using all electric power, and you'll get about 101 mpg. That's still less than half of your claim of 230 mpg.

From Wikipedia:

On August 2009, General Motors released its estimated city fuel economy rating for the Volt of 230 mpg-US (1.0 L/100 km; 280 mpg-imp) of gasoline plus 25 kW·h/100 mi (560 kJ/km) of electricity using the EPA's proposed method for evaluating plug-in hybrids. The U.S. Environmental Protection Agency (EPA) issued a statement clarifying that the "EPA has not tested a Chevy Volt and therefore cannot confirm the fuel economy values claimed by GM." On July 2010, General Motors recognized that their estimate was based on a formula that never got official approval, and they were awaiting EPA's decision on how the equivalent fuel economy of plug-in hybrids will be estimated.

The official EPA rating was issued in November 2010 EPA and became the agency's first fuel economy label for a plug-in hybrids. The EPA rated the 2011 Volt combined fuel economy at 93 miles per gallon gasoline equivalent (MPG-e) in all-electric mode, and 37 mpg-US (6.4 L/100 km; 44 mpg-imp) in gasoline-only mode, for an overall combined fuel economy rating of 60 mpg-US (3.9 L/100 km; 72 mpg-imp) equivalent (MPG-e). The label also shows the combined city-highway fuel economy in all-electric mode expressed in traditional energy consumption units, rating the Volt at 36 KWh per 100 miles (160 km).


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