Possible Clues:

• Caterpillar product
• Farmer might go in this area of land over river
• Player on tour emptied vehicle
• Farmer may drive this rubbish wagon in reverse
• Vehicle taking another one up hill
• Tiller puller
• Vehicle with rubbish, vehicle falling over
• Leaders in the ruck bearing down on player that's powerful on the field
• One vehicle or another heading North, in the right direction
• Farm hauler