I bought the infinti q50 red sport 400 after I test drove it for the first time. The motor is explosive. I have owned mine since it had 50km and I very recently traded it in after an amazing 100 000kms. This is an amazing vehicle. I loved every second driving it. My wife and I took it on a 10 000km road trip across Canada and everything about this perfect gt car showed. Amazing fuel economy (avg 7.8l/100km) for such a monster of an engine. Not only is the car amazing, the infiniti dealer service was surprisingly affordable and a step above, especially when you compare to any of the German brands. If you can find one that was well maintained, it is a great bargain used. I find the Infiniti brand gets a bad rep in the auto industry for some reason but when you are looking for a great all-round, good looking car, the red sport does everything very well.