BMW has introduced the new BMW X4 xDrive35i to the market and the all-new five-door crossover with coupe-like styling is available now. The 2015 X4 comes in two trim levels in the U.S., xDrive 28i and xDrive 35i. The "xDrive" moniker indicates all-wheel drive, while the numbers denote whether the engine is a turbocharged four-cylinder (28i) or a turbocharged-six (35i). This week, we are testing a Melbourne Red Metallic X4 xDrive 35i model.