The BMW X4 is redesigned for 2019 and is based on the current-generation X3. The new X4 gains new safety technology and an inch of legroom over its predecessor. But its coupelike profile sacrifices some utility and visibility for a more athletic appearance. The base version is now called the xDrive30i and features a 248-hp, turbocharged four-cylinder engine, while the M40i is powered by a 355-hp, six-cylinder turbo engine. Both have all-wheel drive and a smooth-shifting eight-speed automatic transmission as standard equipment. We found the X3 thoroughly engaging to drive and expect similar performance from the X4. Forward collision warning and city-speed automatic emergency braking are standard, as is a 10.25-inch touch screen with navigation.