I have the Vapor Rhino 145, but in the 230v version. I am able to wash the exterior of a vehicle with it in almost no time. It does struggle a bit to keep pressure, but it does what I need it to do for now. I also do mobile as a service, and can wash cars with less than a gallon of water with it and can do it in temps as low as 20* without it freezing due it only using 5% water vapor, unless you use the chemical injection, which I do. The only downfall to the Vapor Rhino is that you cannot use de-ionized water in it. I tried it to prevent water spots forming, and the sensors in it will not detect it and cause it to not function.
I am looking at a larger unit, the Fortador Pro., which has more PSI than the Vapor Rhino and to increase profits and decrease time, can use two hoses at once. This is a stand alone unit whereas I have to take my Generator with me for the Vapor Rhino due to the 230v and most clients don`t have that in their house. I had one wired up for detailing in the winter and can wash a car and do a full detail in my garage with a contamination mat down with less than a gallon of water. It does take a little bit longer than washing with a pressure washer, but it is a great alternative. I also use it for the interior, door jambs, inner wheels, etc. Overall, it is an EXCELLENT machine!
Here is a video of me washing a vehicle in 16* temps. I first spray an ONR on the vehicle so I am not wiping it totally dry. If the vehicle is super dirty, I will use the steamer to first rinse and then go back over it again.
https://youtu.be/HYE0IHO-Nys
As far as Extractors, I have the Mytee HP60 for about 10 years. It`s worked flawless. I only had to replace the pump in it once about 3 years ago. Other than that, I have zero issues with it and if this one ever totally quit on me, I`d have no hesitation buying another one.