There are many special achievements in "Test Drive Unlimited: Crown of the Sun". The calling car achievement is one of the simpler ones. The way to complete the achievement is to obtain cars of each category. You will unlock this naturally. Because you need to have one car from each category to progress through the game.
How to call car achievements in Unlimited Test Drive Sun Crown
Call All Cars - Get cars of each category
You'll unlock this naturally, as you'll need to have one vehicle from each category to progress through the game. You'll need at least one: daily driver, off-roader, grand tourer, supercar, and hypercar. You can unlock this achievement once you have a car in each category.
You'll unlock this one naturally as you'll need to own one car of each category in order to continue with the games progression. You will need at least one: Daily Driver, Cross Country, Grand Tourer, Super-car , and Hyper-car. Once you have one car in each category, you will unlock this achievement.
