PHOENIX — Until now, if you wanted a luxury electric crossover utility vehicle, your choice was limited to one: Tesla Model X. However, Jaguar has started delivery of its luxury crossover EV, the I-Pace, and Audi has unveiled its e-tron SUV. Others like Porsche are close behind. The I-Pace is sleek, sharp looking five-passenger crossover that’s powered by a 90-kilowatt-hour lithium-ion battery that powers a pair of electric motors.