Why wood cannot be used to make car tires?

Wood can and has been used to make car tires (tyres), it presents a host of problems however. Wood is solid and does not offer any shock protection from road surfaces and transmits them to the body of the car, it also does not wear well on rough surfaces (such as asphalt or concrete) so it will not last very long, it also tends to be slick and not 'grip' the road so sliding is a problem (more so in the rain).