In order to collect more free coins either silver or gold ones, you must accomplish missions in dr driving game
With coins, you can buy upgrades for your car and repair your car after having some tough races.
Furthermore, completing the lane submissions as often as possible will earn you free coins.
To do so, you can go to the top right corner of the screen to see a list of three arrows that will be in top left if you have switched to left lane driving in the options menu.
Then go to the arrow in the orange one, and do this to earn one bonus coin whereabouts 20-40 coins in one stage based upon how fast you can do this.
Moreover, if you can beat a mission you will earn more coins as well.
Therefore, you have to pick the missions that you consider easy to beat like in the highway speed mission, as you will not need either to park or to turn your car.
And all that you have to do is to accelerate, weave around cars, and then cross the finish line.
By playing this mission in few times, you will get ton of coins and try to increase your driver level by beating missions too.
However, if you select the normal fast mission, you have do the turns in the right way so just make the turns like normal without running into any cars.
And to increase the level of comfort, you can keep at a consistent speed during the race.
In addition, completing various achievements will earn you coins as bonus.
To do so, go to the Achievements section of Game Center to see what are available to play.
Then try complete one of them to earn a large amount of bonus coins
In description of this, completing 100 lane submissions will earn you 500 coins immediately.
Except coins, gold is the premium currency of the game to buy the cars in that with these new cars, you will have a chance of leading you in the first place among others.
According with this point, you just tap on “Rate This!” button to rate the game in the “credits” menu as it will earn 100 gold.
On the other side, simply log into the game with your Facebook account from the home screen to earn 250 gold in one shot only.
With enough gold and coins, you can own the premium cars for either 250 or 350 coins only
By doing above actions, you will also earn silver coins as well.
In order to earn free gold coins, all you have to do is merely to link the game up to Facebook.
Meanwhile, completing various achievements will also earn you free silver coins through Game Center
Plus, by beating missions over and over will also give you ton of coins to have.
Afterward, all you have to do is simply to go to the car menu to upgrade various parts of your car you have used to race, as this will cost far cheaper and only silver coins that will be needed to get your car pimped into the better one in this game.