This is the highest non-full M model; the M440i with xDrive as standard.  MSRP starts at just under $60,000.  It’s a luxury performance car that delivers high levels of both attributes; it’s fast and fun while at the same time comfortable and techy.  Its heart continues to beat with a 3.0-liter turbo-6 but one that yields significantly more; 382 horsepower and 369 pound-feet of torque, allowing it put away 60mph 3/10ths of a second faster, now clocking an eye-opening 4.3 seconds assisted by launch control.  With an additional 48-volt battery providing mild hybrid technology, this car’s mixed metal makeup tallies an extra 150 pounds versus the previous model but it feels even more athletic.  With the benefit of extras such as the Adaptive M Suspension and High Performance Tire Pack, the M440i is a blast to drive with supreme road holding confidence, a cabin-infused with delightful sounds and the ability to rocket out of corners thanks to the M Sport Differential.  A double push of the Sport button takes you to into Plus and it’s this setting where the car truly earns its moniker “The Ultimate Driving Machine.”  The 8-speed auto is incredibly smart so using the paddle shifters isn’t even necessary to keep the gearbox in the sweet spot.  The steering is quick and nicely weighted and the engine is extremely responsive, backed by some convincing sounds in the cabin and a chassis that’s willing to dance.  The windshield is squinty but the leather sport buckets with adjustable side bolsters allow you to find an agreeable seating position that sits you low, closer to the car’s center of gravity for a feeling of greater connectedness.  And there’s a head-up display to keep you focused on the road ahead.  As for the ride quality?  It’s exceptional no matter what mode you’re in.  Combined with a quiet cabin and a long list of modern comfort features, the 4 can happily play serene and composed.  Despite the additional power, the stellar gas mileage holds the line thanks to the mild-hybrid setup, earning 25mpg in mixed driving. If you’re down with the new styling, rest assured the rest of the 440i is going to make you very happy.