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<blockquote data-quote="Glocktogo" data-source="post: 2871714" data-attributes="member: 1132"><p>The highest EPA combined rating for any Cayenne is 21 mpg. CAFE standards are measured by each car's "footprint". Porsche's "footprint" is going to be different from every other manufacturer, but their 2016 target is 29.8 mpg for light trucks/SUVs and 41.1 mpg for passenger cars. That's an old estimate and their footprint has changed with the introduction of the Macan. The trick isn't just to decrease the footprint, because that just results in an increase in their target EPA rating overall. The trick is to increase efficiency per sq. ft. of footprint they have.</p><p></p><p><a href="http://www.caranddriver.com/features/how-automakers-will-meet-2016-cafe-standards" target="_blank">How Automakers Will Meet 2016 CAFE Standards - Feature</a></p><p></p><p></p><p></p><p>That's the reason for Atkinson cycle engines, direct port injection, start stop technology, 7, 8, 9 speed transmissions, lowered drag coefficients (fighting against competing pedestrian safety regs) and weight reductions (competing against passenger safety regs). So a Volvo XC90, of which 40% of the total vehicle curb weight is high strength steel for passenger safety, has to have an even higher efficiency engine/drivetrain/drag coefficient in order to be a viable part of the maker's lineup.</p><p></p><p>Long story short, the more Chevy sells of the Spark, Sonic, Cruze and Volt, the more Camaro SS's they can sell. Bringing back the Colorado was a no brainer and the 2.8L Duramax diesel is critical to continue selling those 6.2L V8 Silverados.</p><p></p><p>The days of the stand alone, no compromise car models are long gone. To get approval from the head shed, any new car design is going to be measured against it's expected popularity and overall impact on the maker's CAFE goals.</p></blockquote><p></p>
[QUOTE="Glocktogo, post: 2871714, member: 1132"] The highest EPA combined rating for any Cayenne is 21 mpg. CAFE standards are measured by each car's "footprint". Porsche's "footprint" is going to be different from every other manufacturer, but their 2016 target is 29.8 mpg for light trucks/SUVs and 41.1 mpg for passenger cars. That's an old estimate and their footprint has changed with the introduction of the Macan. The trick isn't just to decrease the footprint, because that just results in an increase in their target EPA rating overall. The trick is to increase efficiency per sq. ft. of footprint they have. [URL='http://www.caranddriver.com/features/how-automakers-will-meet-2016-cafe-standards']How Automakers Will Meet 2016 CAFE Standards - Feature[/URL] That's the reason for Atkinson cycle engines, direct port injection, start stop technology, 7, 8, 9 speed transmissions, lowered drag coefficients (fighting against competing pedestrian safety regs) and weight reductions (competing against passenger safety regs). So a Volvo XC90, of which 40% of the total vehicle curb weight is high strength steel for passenger safety, has to have an even higher efficiency engine/drivetrain/drag coefficient in order to be a viable part of the maker's lineup. Long story short, the more Chevy sells of the Spark, Sonic, Cruze and Volt, the more Camaro SS's they can sell. Bringing back the Colorado was a no brainer and the 2.8L Duramax diesel is critical to continue selling those 6.2L V8 Silverados. The days of the stand alone, no compromise car models are long gone. To get approval from the head shed, any new car design is going to be measured against it's expected popularity and overall impact on the maker's CAFE goals. [/QUOTE]
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