Looking to purchase a new pressure washer for washing the car etc.

Only looking to spend around £200.00 but don't know what to get.
I want one with a decent flow rate betweeen 400-500 litres per hour and must provide 120-160 bar of pressure.

Anyone had experience with any decent ones? - im sick of buying the same old shi*te from places like Focus etc. I've had two karcher electric washers and both were crap and lasted no longer than a year.