Could do something like GW's Gorkamorka. The vehicles move left and right and a bit forward and back, but the scenery is what moves along the table. (I'm assuming you're looking for something of a chase scene?)
Maybe make a random encounter table for boulders, trees, animals or other hazards on the road that you roll each turn. Have it so for the most part it's clear, but a 1-2 in 6 or 3 in 10 there is something to avoid.