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Xenons

As with any new technology, ultra-bright xenon lights were expensive when they arrived in the early Nineties. But the cost is more palatable these days. 

Anyone who drives a lot at night, particularly in rural areas, will appreciate the difference they make – but they won’t add to resale value, according to Glass’s Jeff Paterson. “As with most options, you lose two-thirds of their value when you leave the showroom,” he said.