Meet the Bentley of in-car vacs! If style is important when cleaning your cabin, this is an ideal choice – although it comes at a high price. And that doesn’t even include the extra attachments, which add £34.99 to the cost. The Dyson is brilliant at cleaning, but with only six minutes of power, you’ll need to be quick. The bonus is that it has a lithium battery, which means a full charge takes only three hours.