Possible Clues:

• How a trucker might go up a hill
• Like a bicycle climbing a hill
• Like a truck ascending a steep hill, gear-wise
• Like a semi on a mountain road
• Like a truck descending a steep hill
• Like a truck climbing a steep hill
• Just starting to roll, perhaps
• Like trucks going up or down a steep hill
• How trucks go uphill
• "Friends ___ Places"