The entry-level MKS has been available since last year, but a higher-end MKS with an EcoBoost engine will start at $47,760 when it goes on sale this summer. The EcoBoost MKS costs $5,000 more than the entry-level MKS with all-wheel drive; all EcoBoost models use all-wheel drive.
The EcoBoost V-6 uses twin turbochargers and direct injection to make 355 horsepower and 350 pounds-feet of torque. The engine is mated to a six-speed automatic transmission only.
The MKS with its potent EcoBoost engine is aimed at performance sedan competitors like the supercharged 2009 Audi A6 ($50,100) and twin-turbo 2009 BMW 535i xDrive ($53,400).
Even with the additional power the EcoBoost MKS scored better gas mileage ratings -- 17/24 mpg city/highway -- in preliminary testing than the entry-level MKS. The entry-level MKS with all-wheel drive is rated at 16/23 mpg.
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