For cleaning the car, using a foam lance, cleaning the patio - the usual domestic stuff. There seem to be two levels:
100 quid or less: Universal motor 1200-1600W, 300-400 litres/hour, bought from Argos, or most hardware suppliers, e.g. Nilfisk C Series & equivalents, or
200 quid or more: Induction motor 1500-2100W, 400-500 litres/hour, bought from some hardware suppliers or from main dealers; e.g. Nilfisk E Series & equivalents.
Is it worth spending twice the money for more power and higher flowrates - will I notice any difference when using a washer for the above-mentioned chores?