If anyone has a black car, wants to enjoy the valeting process himself but is too lazy to spent more than 2 hrs on the car, I suggest you try the Turtle Wax Black Box. I bought the product over the weekend after watching a few vids on youtube and have to say the results are stunning for a <2hr job. All application is by hand and its is extremely easy to apply. It contains a pre-wax cleaner which is like a very soft polish, a carnauba wax and a black spray detailer. Its a 2-step process and even after the 1st step, the car was totally transformed. Maybe my expectations are low but having bought the car from BMW Highgate 18mths ago, I don't think i have seen the car shine like a mirror. Just make sure you put on a pair of rubber gloves as all the material are either grey or black.
Some interesting vids on the products here http://www.youtube.com/results?search_query=turtle+wax+black+box&aq=1&oq=turtle+wax
Some interesting vids on the products here http://www.youtube.com/results?search_query=turtle+wax+black+box&aq=1&oq=turtle+wax