diff --git a/udemy-cpp/exc01/AdFunctions.cc b/udemy-cpp/exc01/AdFunctions.cc
index 6bf3576..53f2ef1 100644
--- a/udemy-cpp/exc01/AdFunctions.cc
+++ b/udemy-cpp/exc01/AdFunctions.cc
@@ -4,3 +4,45 @@
 
 #include "AdConstants.h"
 #include "AdFunctions.h"
+
+namespace Ad
+{
+namespace Utils
+{
+
+constexpr float kph_to_mps(const float kph)
+{
+    return 0.2778 * kph;
+}
+
+} // namespace Ad::Utils
+
+namespace Data
+{
+
+Types::Vehicle init_ego_vehicle()
+{
+    Types::Vehicle ev =
+        {.id = Constants::EGO_VEHICLE_ID,
+         .lane = Types::Lane::Center,
+         .speed_mps = Utils::kph_to_mps(135),
+         .rel_distance_m = 0,
+        };
+    return ev;
+}
+
+} // namespace Ad::Data
+
+namespace Visualize
+{
+    
+void print_vehicle(const Types::Vehicle vehicle)
+{
+    std::cout << "Vehicle " << vehicle.id << '\n';
+    std::cout << "speed : " << vehicle.speed_mps << " m/s\n";
+    std::cout << "distance : " << vehicle.rel_distance_m << " m\n";
+}
+
+} // namespace Ad::Visualize
+
+} // namespace Ad
diff --git a/udemy-cpp/exc01/AdFunctions.h b/udemy-cpp/exc01/AdFunctions.h
index e1ff169..9859ebe 100644
--- a/udemy-cpp/exc01/AdFunctions.h
+++ b/udemy-cpp/exc01/AdFunctions.h
@@ -1,3 +1,22 @@
 #pragma once
 
 #include "AdTypes.h"
+
+namespace Ad
+{
+namespace Utils
+{
+    constexpr float kph_to_mps(const float kph);
+} // namespace Ad::Utils
+
+namespace Data
+{
+    Types::Vehicle init_ego_vehicle();
+} // namespace Ad::Data
+
+namespace Visualize
+{
+    void print_vehicle(const Types::Vehicle vehicle);
+} // namespace Ad::Visualize
+
+} // namespace Ad
diff --git a/udemy-cpp/exc01/AdTypes.h b/udemy-cpp/exc01/AdTypes.h
index 7c13713..4a1dad4 100644
--- a/udemy-cpp/exc01/AdTypes.h
+++ b/udemy-cpp/exc01/AdTypes.h
@@ -3,3 +3,27 @@
 #include <cstdint>
 
 #include "AdConstants.h"
+
+namespace Ad
+{
+namespace Types
+{
+
+enum class Lane
+{
+    Unknown,
+    Left,
+    Center,
+    Right,
+};
+
+struct Vehicle
+{
+    std::int32_t id;
+    Lane lane;
+    double speed_mps;
+    double rel_distance_m;
+};
+
+} // namespace Types 
+} // namespace Ad