diff --git a/openrouteservice/optimization.py b/openrouteservice/optimization.py
index 57b337b..871711c 100644
--- a/openrouteservice/optimization.py
+++ b/openrouteservice/optimization.py
@@ -283,6 +283,7 @@ def __init__(
         self,
         id,
         profile="driving-car",
+        description=None,
         start=None,
         start_index=None,
         end=None,
@@ -290,6 +291,10 @@ def __init__(
         capacity=None,
         skills=None,
         time_window=None,
+        speed_factor=None,
+        max_tasks=None,
+        max_travel_time=None,
+        max_distance=None,
     ):
         """
         Create a Vehicle object for the optimization endpoint.
@@ -303,6 +308,9 @@ def __init__(
             "cycling-electric",]. Default "driving-car".
         :type profile: str
 
+        :param description: A description of the vehicle.
+        :type description: str
+
         :param start: Coordinate for the vehicle to start from. If not specified, the start
             location will be the first visited job, determined by the optimization engine.
         :type start: list of float or tuple of float
@@ -327,11 +335,27 @@ def __init__(
 
         :param time_window: A time_window object describing working hours for this vehicle.
         :param time_window: list of int or tuple of int
+
+        :param speed_factor: a double value in the range (0, 5] used to scale all vehicle travel times (defaults to 1.),
+            the respected precision is limited to two digits after the decimal point
+        :param speed_factor: float
+
+        :param max_tasks: an integer defining the maximum number of tasks in a route for this vehicle
+        :param max_tasks: int
+
+        :param max_travel_time: an integer defining the maximum travel time for this vehicle
+        :param max_travel_time: int
+
+        :param max_distance: an integer defining the maximum distance for this vehicle
+        :param max_distance: int
         """
 
         self.id = id
         self.profile = profile
 
+        if description is not None:
+            self.description = description
+
         if start is not None:
             self.start = start
 
@@ -352,3 +376,15 @@ def __init__(
 
         if time_window is not None:
             self.time_window = time_window
+
+        if speed_factor is not None:
+            self.speed_factor = speed_factor
+
+        if max_tasks is not None:
+            self.max_tasks = max_tasks
+
+        if max_travel_time is not None:
+            self.max_travel_time = max_travel_time
+
+        if max_distance is not None:
+            self.max_distance = max_distance
diff --git a/test/test_helper.py b/test/test_helper.py
index 338c369..f3c26a9 100644
--- a/test/test_helper.py
+++ b/test/test_helper.py
@@ -6,6 +6,8 @@
 
 PARAM_INT_BIG = 500
 PARAM_INT_SMALL = 50
+PARAM_FLOAT_SMALL = 0.5
+PARAM_FLOAT_BIG = 3.5
 PARAM_LIST_ONE = [PARAM_INT_SMALL, PARAM_INT_SMALL]
 PARAM_LIST_TWO = [PARAM_LIST_ONE, PARAM_LIST_ONE]
 
@@ -204,6 +206,7 @@
             {
                 "id": 0,
                 "profile": "driving-car",
+                "description": "vehicle",
                 "start": PARAM_LINE[0],
                 "start_index": 0,
                 "end_index": 0,
@@ -211,10 +214,15 @@
                 "capacity": [PARAM_INT_SMALL],
                 "skills": PARAM_LIST_ONE,
                 "time_window": PARAM_LIST_ONE,
+                "speed_factor": PARAM_FLOAT_SMALL,
+                "max_tasks": PARAM_INT_SMALL,
+                "max_travel_time": PARAM_INT_BIG,
+                "max_distance": PARAM_INT_BIG,
             },
             {
                 "id": 1,
                 "profile": "driving-car",
+                "description": "vehicle",
                 "start": PARAM_LINE[1],
                 "start_index": 1,
                 "end_index": 1,
@@ -222,6 +230,10 @@
                 "capacity": [PARAM_INT_SMALL],
                 "skills": PARAM_LIST_ONE,
                 "time_window": PARAM_LIST_ONE,
+                "speed_factor": PARAM_FLOAT_SMALL,
+                "max_tasks": PARAM_INT_SMALL,
+                "max_travel_time": PARAM_INT_BIG,
+                "max_distance": PARAM_INT_BIG,
             },
         ],
         "options": {"g": False},
diff --git a/test/test_optimization.py b/test/test_optimization.py
index 6db710e..1d01c76 100644
--- a/test/test_optimization.py
+++ b/test/test_optimization.py
@@ -48,6 +48,7 @@ def _get_params(self):
                 Vehicle(
                     idx,
                     profile="driving-car",
+                    description="vehicle",
                     start=coord,
                     start_index=idx,
                     end=coord,
@@ -55,6 +56,10 @@ def _get_params(self):
                     capacity=[PARAM_INT_SMALL],
                     skills=PARAM_LIST_ONE,
                     time_window=PARAM_LIST_ONE,
+                    speed_factor=PARAM_FLOAT_SMALL,
+                    max_tasks=PARAM_INT_SMALL,
+                    max_travel_time=PARAM_INT_BIG,
+                    max_distance=PARAM_INT_BIG,
                 )
             )