Original sentence: Many SUVs and off-road vehicles have the spare wheel mounted externally - usually on the rear door, but others may mount them on the bonnet, the side or even the roof.Spare tires in automobiles are often stored in a spare tire well - a recessed area in the trunk of a vehicle, usually in the center, where the spare tire is stored while not in use.The arrangement may also save space in some applications, however it has disadvantages too, such as the fact that the tire gets very dirty, making the act of changing the tire more unpleasant.Usually a stiff sheet of cardboard lays on top of the spare tire well with the trunk carpet on top of it to hide the spare tire and provide a pleasant look to and a flat surface for the trunk space
Edited sentence: Many SUVs and off-road vehicles have the spare wheel mounted externally – usually on the rear door, but others may mount them on the bonnet, the side or even the roof.Spare tires in automobiles are often stored in a spare tire well – a recessed area in the trunk of a vehicle, usually in the center, where the spare tire is stored while not in use.The arrangement may also save space in some applications; however it has disadvantages too, such as the fact that the tire gets very dirty, making the act of changing the tire more unpleasant.Usually a stiff sheet of cardboard lies on top of the spare tire well with the trunk carpet on top of it to hide the spare tire and provide a pleasant look to and a flat surface for the trunk space