The specs:

Type of vehicle: All-wheel-drive fullsized luxury coupe Engine: Twin-turbo 4.7L DOHC V8 Power: 449 hp @ 5,250 r.p.m.; 516 lb.-ft. of torque @ 1,800 r.p.m.

Transmission: Seven-speed manumatic

Brakes: Four-wheel disc with ABS Tires: P245/45R19 front, P275/40R19 rear all-season run-flats

Price: base/as tested $147,500/$155,790 Destination charge: $1,995 Natural Resources Canada fuel economy: L/100 km 14.4 city, 9.8 hwy.

Standard features: 12-way power and heated front seats with memory, 360 rear-view camera, six-disc DVD changer, Acceleration Skid Regulation, active blind spot assist, active lane keeping assist, active LED high-performance lighting system, adaptive brake, adaptive high-beam assist, Airmatic with continuously variable damping system, AMG Sport package, AMG Styling package, anti-theft alarm system, Attention Assist, auto-dimming mirrors, automatic front seatbelt feeder, automatic headlight activation, brake assist plus with cross-traffic assist, Burmester surround-sound system, climate comfort front seats, Collision Prevention Assist, COMAND online navigation with apps, steering wheel shift paddles, Distronic Plus with steering assist, door-hold function, Drive-Dynamic multi-contour front seats, Driving Assistance package, Eco start/stop function, power steering column, electronic stability control, head-up display, heated armrests, heated rear seats, heated steering wheel, illuminated door sill panels, integrated garage door opener, Keyless Go package, Magic Vision Control, media interface, panoramic sunroof, Parktronic with active parking assist, power folding exterior mirrors, power trunk closer, power windows, rain-sensing windshield wipers, rear-view camera, rear window sunshade, Sirius satellite radio, soft-close doors, automatic climate control