I checked the Euro Car Parts. Today they have a 30% discount. The dicsount code is at their website. With that, both headlights will cost £267. However, if you go to their sister website Car Parts 4 Less, they have the same headlights for £259. With their offer at the website, you only save £15 but if you register to their newsletter, they will send you other discount codes. I got an email yesterday for 9% off. So if your headlights are not pointing in the right direction, you can try to get a discount such as the above and replace both headlights. It will save you the money you will need to pay to replace them to pass the MOT. I have not done any market research, so there may be other online stores with better prices.