The QX50, a luxury compact SUV, has been treated to a light makeover this year. The designers from Nissan's luxury brand modernized it by making a few changes both inside and out. The QX50 gets around thanks to the tireless 3.7-litre V6 that develops 325 horsepower and 267 lb.-ft. of torque. This engine has been in the Nissan family for years.