All the trophy hunters and car collectors in Mafia: Definitive Edition may have noticed a trophy (or achievement) titled "Car Thief Number One". To unlock it, you have to find all the hidden cars in the game. It seems like a snap, especially considering that there are only five cars to track down. However, before you know the location of each one, you need to know how to make each car appear on the map.
What you will need to find the cars
As you progress through the story, postcards will appear on the notice board inside Bertone's Autoservice, which is south of North Park on the map. Tearing off each of the five cards will cause a car to appear in their location. So you'd probably be better off taking this step after the campaign is over.
Once the credits have been rolled out, return to the main menu and switch to Free Ride mode. Now you will want to go to each of the following locations to unlock the cars and the trophy / achievement.
1. Flame lance
To begin your journey, head to the last large building in the lower right corner of Central Island. At the front there should be a yard with two garages. Quite easily, you will just have to open the door to the left and the flame thrower should be inside.
2. Trouble
For the mess, head to the Fyer Dam, the massive structure to the right of Fyer Lake. On the other side of the lake there is a very large brick house with a garage that you can open in the backyard. Lift the door and the gray racecar should be seated in front of you.
3. Trautenberg Sport
In the downtown area there is a part called The Waterfront. Once you arrive, you'll spot a gray building to the right of the West & Sons Waterfront Shop. Open the door and there will be a dozen crates to destroy and jump. After going through the hidden stages, you will see the buff orange ride you can do for a ride.
4. Prototype Manta
You'll have to make your way to the ever-crowded Works Quarter for that bad boy. At the heart of the area, there is a brick building (shown in the image above), which has a maze made of crates behind it. Enter the labyrinth and navigate as far as possible. Once you're at the end, Tommy can break down a door in front that has the Manta behind her.
5.Lassiter V16 Appolyon
In the game's smallest neighborhood, Beech Hill, there is a house that stands alone in the middle of the area. The accompanying brown-door garage will have a golden Lassiter inside. However, its owner is ready, you may want to bring a weapon.