2015 K900 Fuel Economy Identical to Genesis
 

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It’s not a very well-kept secret that Kia’s first true luxury car, the K900, is based on parent company Hyundai’s trailblazing Genesis sedan platform. However differentiated the two may be visually, there’s no getting around their shared architecture—and nearly identical V-6 and V-8 engines mated to the same eight-speed automatic. Thus, it comes as no surprise that the K900′s newly released fuel-economy estimates from the EPA mirror those of the Genesis.
As our friends across town at Automobile discovered, the base 3.8-liter V-6–powered K900 is EPA-rated for 18 mpg in the city and 27 on the highway, while the more powerful 5.0-liter V-8–equipped model gets a somewhat dismal 15/23 mpg estimate. While the V-6′s numbers aren’t terrible for a car as large as the K900, the V-8′s performance barely crests what you get from an average full-size pickup. Compared to the Chrysler 300, another rear-drive big boy, the Kias look even more hamstrung; the 300 gets 19/31 mpg with its 3.6-liter V-6, and 15/25 with its 5.7-liter V-8. (The high-performance, 470-hp SRT8 model gets a K900-like 14/23, but that car also runs to 60 mph in 4.4 seconds.)


Against Kia’s more-aspirational competitors, it still loses out, with the six-cylinder BMW 535i netting 20/30 and the eight-cylinder 550i nailing 17/25. The Mercedes-Benz E350 sedan gets 21/30, while the V-8–powered E550 4MATIC gets 17/26. Audi’s supercharged V-6–powered A6 3.0T Quattro matches the six-pot Kia’s EPA figures, but also has all-wheel drive. The S6, with its twin-turbocharged V-8, smacks down the Kia with a 17/27 estimate. But fuel economy is just one side of the K900′s story—the other side is the sedan’s value proposition. The Kia is far larger than any of the aforementioned German luxury sedans, but is expected to cost about the same. Hey, that formula worked for Hyundai, which soon will release its next-generation Genesis. So as long as buyers aren’t too hung up on fuel economy, the K900 might just see similar success.

I was hoping Kia would have taken this project on themselves without making their flagship sedan Hyundai-based. But they had to start somewhere.
Maybe if they see success with the K900 globally they'll consider one day making a next gen model all on their own? What do you think?

Not likely....as all engines are used in similar hundai models...however tuning is different...so cars are very different even they share engines

I'm disappointed with whoever authored this piece.

you're right its not a well kept secret, because its not based on genesis but Equus..

LOL, not angry, just "disappointed."

I was hoping the Kia K900 would have better fuel economy numbers than this though. I understand that it is a big car, but look at the vehicles it is trying to compete against. This is just not up to par if Kia really wants to play ball with the big boys.

Although it's based on the Equus, it may not be a bad thing, but it sure isn't helping them stand out when someone looking into the details.
Time to look at how different it is from the Equus.

The K900 with the the 5 liter V8 and VIP package is a 4,600 pound vehicle. It takes some energy to get this bad boy rolling, but the ?420 HP? does it very well and can out do a number of other cars out there. And, on the highway, at an average of 75 to 85 MPH I get more than 25 MPG. I am surprised and pleased. Quite a car.