Related Clues:

• Line of travel
• Military equipment
• Neutral, for one
• Brougham, e.g.
• Assembly line product, sometimes
• Mapquest.com offering
• Something to put a car in
• 66, for one
• Accessories
• 1 or 66
• Course of travel
• Backpack filler
• It may be polar
• Midsize
• Big wheels