Two SUVs with some similarities, but otherwise different in most aspects such as the fuel economy, model year, market segment, horsepower, height, and maximum occupancy. First of all, the 2016 QX70 has a more powerful engine than the 2014 Highlander Hybrid, and it gets 9.5 fewer miles on a gallon of fuel. Also, the QX70 is slightly shorter than the Highlander Hybrid. In addition, you'll seat two more passengers in the Toyota Highlander Hybrid than in the Infiniti QX70. Among similarities are the body structure, starting price, and ground shadow size.