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Base Price: $62,895 As-Tested Price: $73,095 Drivetrain: 4.4-liter turbocharged V8; RWD, eight-speed automatic Output: 400 hp @ 5,500-6,400 rpm, 450 lb-ft @ 1,750-4,500 rpm Curb Weight: 4,365 lb Fuel Economy (EPA/AW): 18/16.2 mpg Options: M sport package including dynamic damper control, 19-inch alloy double-spoke wheels, multi-contour seats, M steering wheel, aerodynamic kit, shadowline exterior trim, anthracite headliner ($3,800); driver assistance package including automatic high beams, lane departure warning, active blind spot detection, side and top view cameras, head-up display ($3,500); convenience package including power tailgate, comfort access keyless entry, soft-close automatic doors ($1,700); premium sound package including satellite radio and one-year subscription, premium hi-fi system ($950); BMW apps ($250) New BMW 5-series at shopautoweek.com I would describe the 2012 BMW 550i sedan, despite its size and 4,365-pound curb weight, as fleet of foot

NEWS GREG MIGLIORE: The 2012 Acura MDX is a classy SUV with respectable power and a bit of space inside. Using it for a commuter lap, I unfortunately didn't make full use of its potential, but I'll leave that to members of the staff with offspring of the two- and four-legged variety. I was impressed with the six-cylinder engine. It didn't strike me until I merged a few lanes over and jabbed the throttle, producing a pleasing sound and decent acceleration as I trailed in the wake of a Chevy Camaro convertible. I played with the paddles a bit, too. They were fun, amusing for a good-sized crossover, but not exactly Formula One-inspired. They're just something to spice up the drive into work and summon the revs a bit more purposefully on the expressway. The cabin of the MDX is impressive in appearance and execution. This sampler came in stately black inside, and the steering wheel and door panels were smart. The atmosphere was quiet and serene, with just a bit of wind

Price: £31,595 0-62mph: 4.9sec Top speed: 155mph (limited) Economy: 37.7mpg combined CO2: 175g/km Kerbweight: 1500kg Engine: 6-cyls, in-line, 2979cc, petrol turbo Installation: Longitudinal Power: 316bhp at 5800rpm Torque: 332lb ft at 1300-4500rpm (with overboost) Gearbox: 8-spd automatic A mix of dry and damp, tight bends and a narrow road should be challenge enough for a hot hatch with 316bhp to spill from its rear wheels. And if that sounds like a temptingly reckless number then you'd be right it's only 19bhp down on the output of the lately departed 1M Coupe, and the M135i's 320lb ft of torque is identical. If it comes with the optional eight-speed paddle shifter of our test car, the 135i will zoom-flick, zoom-flick, zoom-flick through the gears to 62mph in just 4.9sec. Go for the six-speed manual and the time actually rises to 5.1sec because its wider spread of ratios are less speedily swapped. Either way, this new three-door 1-series is eag