diff --git a/src/karts/cached_characteristic.cpp b/src/karts/cached_characteristic.cpp
index a122bdec2..4080de1ba 100644
--- a/src/karts/cached_characteristic.cpp
+++ b/src/karts/cached_characteristic.cpp
@@ -49,7 +49,7 @@ CachedCharacteristic::~CachedCharacteristic()
                 delete static_cast<InterpolationArray*>(v.content);
                 break;
             case TYPE_BOOL:
-                delete static_cast<InterpolationArray*>(v.content);
+                delete static_cast<bool*>(v.content);
                 break;
             }
             v.content = nullptr;
diff --git a/src/karts/kart_properties.cpp b/src/karts/kart_properties.cpp
index 4ab64720b..7fb29bcf1 100644
--- a/src/karts/kart_properties.cpp
+++ b/src/karts/kart_properties.cpp
@@ -25,6 +25,7 @@
 #include "graphics/irr_driver.hpp"
 #include "graphics/material_manager.hpp"
 #include "io/file_manager.hpp"
+#include "karts/cached_characteristic.hpp"
 #include "karts/combined_characteristic.hpp"
 #include "karts/controller/ai_properties.hpp"
 #include "karts/kart_model.hpp"
@@ -74,6 +75,7 @@ KartProperties::KartProperties(const std::string &filename)
     m_shadow_z_offset = 0.0f;
     m_characteristic  = NULL;
     m_combined_characteristic = NULL;
+    m_cached_characteristic = NULL;
 
     m_groups.clear();
     m_custom_sfx_id.resize(SFXManager::NUM_CUSTOMS);
@@ -120,6 +122,8 @@ KartProperties::~KartProperties()
         delete m_characteristic;
     if (m_combined_characteristic)
         delete m_combined_characteristic;
+    if (m_cached_characteristic)
+        delete m_cached_characteristic;
     for(unsigned int i=0; i<RaceManager::DIFFICULTY_COUNT; i++)
         if(m_ai_properties[i])
             delete m_ai_properties[i];
@@ -314,6 +318,8 @@ void KartProperties::combineCharacteristics()
 {
     if (m_combined_characteristic)
         delete m_combined_characteristic;
+    if (m_cached_characteristic)
+        delete m_cached_characteristic;
     m_combined_characteristic = new CombinedCharacteristic();
     m_combined_characteristic->addCharacteristic(kart_properties_manager->
         getBaseCharacteristic());
@@ -329,6 +335,7 @@ void KartProperties::combineCharacteristics()
         m_combined_characteristic->addCharacteristic(characteristic);
 
     m_combined_characteristic->addCharacteristic(m_characteristic);
+    m_cached_characteristic = new CachedCharacteristic(m_combined_characteristic);
 }   // combineCharacteristics
 
 //-----------------------------------------------------------------------------
@@ -530,7 +537,7 @@ const AbstractCharacteristic* KartProperties::getCharacteristic() const
 // ----------------------------------------------------------------------------
 const AbstractCharacteristic* KartProperties::getCombinedCharacteristic() const
 {
-    return m_combined_characteristic;
+    return m_cached_characteristic;
 }   // getCombinedCharacteristic
 
 // ----------------------------------------------------------------------------
@@ -543,8 +550,8 @@ bool KartProperties::isInGroup(const std::string &group) const
 float KartProperties::getAvgPower() const
 {
     float sum = 0;
-    std::vector<float> gear_power_increase = m_combined_characteristic->getGearPowerIncrease();
-    float power = m_combined_characteristic->getEnginePower();
+    std::vector<float> gear_power_increase = m_cached_characteristic->getGearPowerIncrease();
+    float power = m_cached_characteristic->getEnginePower();
     for (unsigned int i = 0; i < gear_power_increase.size(); ++i)
         sum += gear_power_increase[i] * power;
     return sum / gear_power_increase.size();
diff --git a/src/karts/kart_properties.hpp b/src/karts/kart_properties.hpp
index d9894ec4c..3801e0e9f 100644
--- a/src/karts/kart_properties.hpp
+++ b/src/karts/kart_properties.hpp
@@ -39,10 +39,10 @@ using namespace irr;
 
 class AbstractCharacteristic;
 class AIProperties;
+class CachedCharacteristic;
 class CombinedCharacteristic;
 class Material;
 class SkiddingProperties;
-class XmlCharacteristic;
 class XMLNode;
 
 /**
@@ -126,9 +126,11 @@ private:
     /** The physical, item, etc. characteristics of this kart that are loaded
      *  from the xml file.
      */
-    XmlCharacteristic *m_characteristic;
+    AbstractCharacteristic *m_characteristic;
     /** The base characteristics combined with the characteristics of this kart. */
     CombinedCharacteristic *m_combined_characteristic;
+    /** The cached combined characteristics. */
+    CachedCharacteristic *m_cached_characteristic;
 
     // Physic properties
     // -----------------