Get to the finish line as soon as you are possible to do so.
In order to unlock the different vehicles you need to complete the game first by using the ATV.
Once you have completed the round on the ATV you can move onto the off-road bike. Once you have managed to complete the race on the bike you can move onto the tougher and more skilled 4x4.
Put on your racing gloves and let’s see how many devices you can unlock.