Also you will have to 'adjust' you car to meet UK standards - otherwise will not get an MOT.
Rear fog light swithed to otherside
Headights but a friendly MOT station will pass it with beam benders
They do recomend to swap KM to MPH easy to do as there are plenty of companies doing overlay kits.I didnt bother.What year is the car? as you may need to fit rear seat belts and side repeaters as not all European models came with them fitted.
You can mot the car on Polish plates as they use the Polish reg number and the cars chasis number
I have reg'd two cars one from Germany and one from Holland both still Left hand drive.Its easy to do but takes up to 10 days now.Insurance was not a problem with LHD cars.
The car I imported from Germany had to have homologation paper work from VW UK as the car was never officially sold in the uk.
When you de reg the car in Poland make sure you retain the cars documants or you will have a big problem getting it regd in the UK.