Challenge Xtreme

Had Halfords’ HP1400 come with as many extras as this, it would have been pushing for honours. The Challenge Xtreme has two wheel brushes, a built-in detergent tank and two lances. As it’s light, it’s easy to move around, but some of the parts feel low-rent. The ear-piercing motor also performed poorly, and there was too much vibration through the gun.