So bought the karcher fj10c and washed my astra estate and wife's Citroen c1. As still 2 weeks before getting mini thought it would be good idea to try things out. Spent £35 in halfords and £3.99 on demon shine spray in b&m stores, that's about half price so good deal.
Anyhow first impressions of the karcher fj10c. I like. Whether these things clean better than ordinary car shampoo and bucket remains to be seen but it does seem easier with the fj10. Turned dial about half way and got a good amount of form. Let it lie for about 10 minutes power hosed it off then turned dial down a bit and put more foam on. This is where it makes it worth while. Got the noodle mitt with a clean bucket of water and just used the foam still on the car to wash it. Seen someone else on here doing it this way and it is a lot easier than using a soapy bucket.
Happy with karcher and the results.
Did do wife's car and turned dial right up and whilst more foam, it went though it a lot quicker. Used half a bottle in total.
Used demon shine after and that really done the job.