In reply to various comments regarding 4x4 vehicles (Letters, February 21 and 23), here are a few facts in their defence: One, they do not cause any rise in emissions of carbon monoxide, as one reader states. They are subject to the same very strict emission tests as any other vehicle.

Being higher off the ground and more upright, a 4x4 makes access for such people much easier.

Thirdly, I think I am right in saying there are fewer 4x4s involved in accidents and they are more roadworthy than the average saloon car. Why, then, should a 4x4 vehicle be taxed differently from any other type of car?

They are no different than any other vehicle. Perhaps jealousy is at work here. What damage do they do that another writer feels a punitive level of taxation should be incurred?

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