Mercedes Benz C 63 AMG
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Unlike the M3's small displacement V8, the C63 uses a big 6.2-liter V8. This powerplant is good for 443 lb-ft of torque and 451 horsepower. The torque curve of the engine is just as impressive as its output: from 2000 to 6250 rpm the driver always has more than 360 pound-feet on tap - ideal for powerful acceleration at any engine speed range.
The sprint to 62 mph takes a scant 4.5 seconds according to Mercedes, an estimate that is likely conservative by at least three tenths of a second.
For those looking for even more power, the AMG Development Package ups output to 481 ponies by borrowing forged pistons, connecting rods and lightweight crankshaft from the SLS AMG's engine. Torque remains unchanged. Mercedes claims the package will scoot the car to 62 mph in 4.3 seconds; in the real world, expect times in the high 3-second range.
The Development Package also includes a variable intake manifold painted in titanium grey under the hood, an AMG high-performance braking system with two-piece front discs and red painted brake calipers at all four corners, a carbon-fiber spoiler lip on the trunk lid and an AMG performance steering wheel wrapped in premium leather with a unique grip area.
All C63 AMG sedans are rated at 13 mpg in the city and 19 mpg on the highway.
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