Guy Martin: World's Fastest Tractor

Guy Martin embarks on his latest speed challenge - to win himself a Guinness World speed Record - by attempting to become the first person to ever drive a tractor at over 100mphGuy Martin embarks on his latest speed challenge - to win himself a Guinness World speed Record - by attempting to become the first person to ever drive a tractor at over 100mphGuy Martin embarks on his latest speed challenge - to win himself a Guinness World speed Record - by attempting to become the first person to ever drive a tractor at over 100mph