It's safe to say that outside of the Z cars, the GT-R, and maybe the Red Sport cars, Nissan and Infiniti both lack any sort of performance cars. For a while, they had some warmer offerings in the form of the Sentra SR Turbo, and the Juke Nismo, but both of those models are gone, with nothing in the pipeline to replace them, and that's a shame.
Infiniti suffers the most from this, because at least Nissan is selling in relatively decent numbers, despite them losing money. Infiniti is floundering as a company and it's because their models are beyond stale. The Q50 has been around since 2014, the QX60 has been around since 2012 (as the JX35) the Q80 is gone but has been around since 2011. The list goes on. It's one thing to see impressive concept cars like the Q80 Inspiration and the Prototype 9, but it's another to put that kind of personality and appeal into their actual line up.
Photo by Ildar Sagdejev on Wikimedia Commons
Back in 2010, Infiniti tried to properly contend with BMW and Mercedes-Benz with their IPL brand. IPL set out to be the Infiniti equivalent of an AMG or an M car, it was offered on the G37 coupe and convertible and was a pretty interesting package. A mild body kit was added onto the G37's already gorgeous lines and then the 3.7-liter V6 was retuned to make 20 horsepower more than the normal G37.
It looked like eventually, Infiniti would have more IPL models down the line, but that never really came to fruition. The S-Series, and now the Red Sport series has taken over, and has left us with a series of lackluster models that are good value by comparison.
Photo by Alexander Migl on Wikimedia Commons
It doesn't help that Infiniti has gotten rid of some of their brilliant models like the QX70, which featured a 5.0-liter V8 from Nissan's LMP1 cars. The excitement has vanished. With the exception of the QX80, Infiniti doesn't necessarily make a decent performance vehicle. They make an alternative to mid-range performance models from the Germans, but have a hard time even competing with the likes of Cadillac, Lincoln, and newcomer Genesis.
Infiniti needs a desperate influx of money, and some models to hype up the brand. They rested on their laurels, effectively selling Nissan Skylines in the form of the G35 and G37 in the early 2000s, but those days are long gone.