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Infiniti’s M line: Specs

Infiniti’s M line

Base price: M37: $46,250; M56: $57,550

Price, as tested: $67,980

Powertrain: M37: 3.7-liter DOHC 24-valve V-6, seven-speed automatic transmission with manual shift mode; rear-wheel drive or all-wheel-drive; M56: 5.6-liter DOHC 32-valve V-8, seven-speed automatic transmission, rear-wheel drive or all-wheel drive

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Horsepower: M37: 330 at 7,000 rpm; M56: 420 at 6,000 rpm

Torque: M37: 270 pound-feet at 5,200 rpm; M56: 417 pound-feet at 4,400 rpm

Curb weight: M37 RWD: 3,858 pounds; AWD: 4,063. M56 RWD: 4,028; AWD: 4,224

0-60 mph: M37: 5.6 seconds (est.); M56: 4.7 seconds (est.)

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Wheelbase: 114.2 inches

Overall length: 194.7 inches

EPA fuel economy: M37 RWD: 18/26 mpg, city/highway; AWD: 17/24. M56 RWD: 16/25; AWD: 16/23

Final thoughts: M stands for ‘makeover.’ Overdue, but well done.

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