BMW’s third generation is likely going to be BMW’s best selling vehicle in America by sometime next year. It was therefore more important than ever that the X3 be one of the best options in the segment that BMW helped invent back in 1999. To that end we get an all-new luxury crossover with more standard and optional technology, more room inside, better fuel economy, improved driving dynamics, and we’ll soon have an interesting mix of electrified powertrains within a year. Is this enough to make the X3 the best compact luxury crossover in America?