diff --git a/src/fr/impl/PartImpl.java b/src/fr/impl/PartImpl.java
index f76c15d..bf1262f 100644
--- a/src/fr/impl/PartImpl.java
+++ b/src/fr/impl/PartImpl.java
@@ -2,7 +2,6 @@ package src.fr.impl;
 
 import java.util.Collections;
 import java.util.HashMap;
-import java.util.HashSet;
 import java.util.Map;
 import java.util.Objects;
 import java.util.Optional;
diff --git a/src/fr/impl/Parts/Engine.java b/src/fr/impl/Parts/Engine.java
index e4b3dad..2cf5c18 100644
--- a/src/fr/impl/Parts/Engine.java
+++ b/src/fr/impl/Parts/Engine.java
@@ -1,12 +1,5 @@
 package src.fr.impl.Parts;
 
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.Optional;
-import java.util.Set;
-
-import org.junit.Test.None;
-
 import src.fr.impl.CategoryImpl;
 import src.fr.impl.PartImpl;
 import src.fr.impl.PartTypeImpl;
diff --git a/src/fr/impl/Parts/Exterior.java b/src/fr/impl/Parts/Exterior.java
index 389b866..702bc61 100644
--- a/src/fr/impl/Parts/Exterior.java
+++ b/src/fr/impl/Parts/Exterior.java
@@ -1,7 +1,6 @@
 package src.fr.impl.Parts;
 
 import java.util.HashSet;
-import java.util.Optional;
 import java.util.Set;
 
 import src.fr.impl.CategoryImpl;
diff --git a/src/fr/impl/Parts/Interior.java b/src/fr/impl/Parts/Interior.java
index 1b25fc0..7c5a800 100644
--- a/src/fr/impl/Parts/Interior.java
+++ b/src/fr/impl/Parts/Interior.java
@@ -1,11 +1,41 @@
 package src.fr.impl.Parts;
 
+import java.util.HashSet;
+import java.util.Set;
+
 import src.fr.impl.CategoryImpl;
 import src.fr.impl.PartImpl;
 import src.fr.impl.PartTypeImpl;
 
-public class Interior extends PartImpl {     
+
+
+
+public class Interior extends PartImpl { 
+     
+     private static final Set<String> colorSet;
+     static {
+          colorSet = new HashSet<>();
+          colorSet.add("black");
+          colorSet.add("white");
+          colorSet.add("cream");
+      }
+
+     String color;
+     String material;
+
      public Interior(String name, CategoryImpl category, int price){
           super(new PartTypeImpl(name,Engine.class, category), price);
+
      }
+
+     public String getColor(){
+          return this.color;
+     }
+
+     public void setColor(String newColor){
+          this.color = newColor;
+     }
+
+
+
 }
diff --git a/src/fr/test/test.java b/src/fr/test/test.java
index adbebde..f5e913f 100644
--- a/src/fr/test/test.java
+++ b/src/fr/test/test.java
@@ -24,19 +24,19 @@ public class test {
 
     PartType EG100PartType = new PartTypeImpl("EG100",Engine.class,engine);
     
-    Engine EG100 = new Engine("EG100",engine,3000);
-    Engine EG133 = new Engine("EG133",engine,8000);
-    Engine EG210= new Engine("EG210", engine,15000);
-    Engine ED110= new Engine("ED110", engine,2000);
-    Engine ED180= new Engine("ED180", engine,4000);
-    Engine EH120= new Engine("EH120", engine,15000);
+    Engine EG100 = new Engine("EG100",engine,19000);
+    Engine EG133 = new Engine("EG133",engine,2200);
+    Engine EG210= new Engine("EG210", engine,25000);
+    Engine ED110= new Engine("ED110", engine,18000);
+    Engine ED180= new Engine("ED180", engine,20000);
+    Engine EH120= new Engine("EH120", engine,25000);
 
     Transmission TM5= new Transmission("TM5", transmission,2000);
     Transmission TM6= new Transmission("TM6", transmission,4000);
     Transmission TA5= new Transmission("TA5", transmission,7000);
     Transmission TS6= new Transmission("TS6", transmission,10000);
     Transmission TSF7= new Transmission("TSF7", transmission,15000);
-    Transmission TC120= new Transmission("TC120", transmission,1000);
+    Transmission TC120= new Transmission("TC120", transmission,5000);
 
     Exterior XC= new Exterior("XC", exterior,0);
     Exterior XM= new Exterior("XM", exterior,1000);