diff --git a/koptilnya/data/models/audi_a6.txt b/koptilnya/data/models/audi_a6.txt
index 768778c..f3e9c42 100644
--- a/koptilnya/data/models/audi_a6.txt
+++ b/koptilnya/data/models/audi_a6.txt
@@ -62,7 +62,7 @@ local Colors =
     ReverseLights = Color(120,120,120),
     RearLightsGlass = Color(150,40,40),
     FrontLightsBase = Color(30,30,30),
-    FrontLights = Color(170,180,180),
+    FrontLights = Color(10,10,10),
     FrontLightsGlass = Color(140,140,140),
     Floor = Color(50,50,50),
     Dashboard = Color(50,50,50),
diff --git a/koptilnya/engine_remastered/clutch.txt b/koptilnya/engine_remastered/clutch.txt
index 09ef473..812de73 100644
--- a/koptilnya/engine_remastered/clutch.txt
+++ b/koptilnya/engine_remastered/clutch.txt
@@ -15,31 +15,42 @@ function Clutch:initialize(config)
     self.targetTorque = 0
     self.torque = 0
 
-    self._engine = nil
-    self._gearbox = nil
+    self.engine = nil
+    self.gearbox = nil
 end
 
 function Clutch:linkEngine(eng)
-    self._engine = eng
+    self.engine = eng
 end
 
 function Clutch:linkGearbox(gbox)
-    self._gearbox = gbox
+    self.gearbox = gbox
 end
 
 function Clutch:getInputs()
-    return {}
+    if self.gearbox ~= nil and self.gearbox.type == gearboxTypes.MANUAL then
+        return {
+            Clutch = 'number'
+        }
+    else
+        return {}
+    end
 end
 
 function Clutch:getOutputs()
     return {
-        ClutchTorque = 'number',
-        ClutchSlip = 'number'
+        Clutch_Torque = 'number',
+        Clutch_Slip = 'number'
     }
 end
 
+function Clutch:updateOutputs()
+    wire.ports.Clutch_Torque = self.torque
+    wire.ports.Clutch_Slip = self.slip
+end
+
 function Clutch:getPress()
-    if self._gearbox ~= nil and self._gearbox.type == gearboxTypes.MANUAL then
+    if self.gearbox ~= nil and self.gearbox.type == gearboxTypes.MANUAL then
         return wire.ports.Clutch
     else
         return self.press
@@ -49,9 +60,9 @@ end
 function Clutch:update()
     local someConversionCoeff = 0.10472
 
-    local engRPM = self._engine and self._engine.rpm or 0
-    local gboxRPM = self._gearbox and self._gearbox.rpm or 0
-    local gboxRatio = self._gearbox and self._gearbox.ratio or 0
+    local engRPM = self.engine and self.engine.rpm or 0
+    local gboxRPM = self.gearbox and self.gearbox.rpm or 0
+    local gboxRatio = self.gearbox and self.gearbox.ratio or 0
     local gboxRatioNotZero = gboxRatio ~= 0 and 1 or 0
 
     self.slip = ((engRPM - gboxRPM) * someConversionCoeff) * gboxRatioNotZero / 2
diff --git a/koptilnya/engine_remastered/configs/sample.txt b/koptilnya/engine_remastered/configs/sample.txt
index c844f30..0cf2a43 100644
--- a/koptilnya/engine_remastered/configs/sample.txt
+++ b/koptilnya/engine_remastered/configs/sample.txt
@@ -36,19 +36,19 @@ Vehicle:new({
     },
     Clutch = {
         Stiffness = 22,
-        Damping = 0.5,
+        Damping = 0.8,
         MaxTorque = 600
     },
     Gearbox = {
-        Type = "MANUAL",
+        Type = 'MANUAL',
         ShiftDuration = 0.2,
         ShiftSmoothness = 0.3,
         Ratios = {13.45, 8.12, 5.51, 4.16, 3.36, 2.83},
         Reverse = 14.41
     },
     Axles = {{
-        Power = 1,
-        Coast = 1,
+        Power = 0.3,
+        Coast = 0.15,
         Preload = 10,
         UsePowerBias = 10,
         ViscousCoeff = 0.96,
@@ -56,8 +56,8 @@ Vehicle:new({
         DistributionCoeff = 0.4,
         FinalDrive = 1
     }, {
-        Power = 1,
-        Coast = 1,
+        Power = 0.4,
+        Coast = 0.3,
         Preload = 10,
         UsePowerBias = 10,
         ViscousCoeff = 0.96,
@@ -66,10 +66,10 @@ Vehicle:new({
         FinalDrive = 1
     }},
     Systems = {{
-        Type = "LAUNCH",
+        Type = 'LAUNCH',
         Limit = 3500
     }, {
-        Type = "TRACTION",
+        Type = 'TRACTION',
         Limit = 1.5
     }}
 })
diff --git a/koptilnya/engine_remastered/differential.txt b/koptilnya/engine_remastered/differential.txt
index fb34220..8ed8a0a 100644
--- a/koptilnya/engine_remastered/differential.txt
+++ b/koptilnya/engine_remastered/differential.txt
@@ -1,12 +1,17 @@
+-- @server
+-- @include /koptilnya/libs/constants.txt
 -- @include ./wire_component.txt
+require('/koptilnya/libs/constants.txt')
 require('./wire_component.txt')
 
 Differential = class('Differential', WireComponent)
 
-function Differential:initialize(config)
+function Differential:initialize(config, order)
     self.power = config.Power or 1
     self.coast = config.Coast or 1
+    self.finalDrive = config.FinalDrive or 1
     self.preload = config.Preload or 10
+    self.order = order or 1
 
     self.viscousCoeff = config.ViscousCoeff or 0.9
     self.usePowerBias = config.UsePowerBias or 10
@@ -16,18 +21,87 @@ function Differential:initialize(config)
 
     self.avgRPM = 0
 
-    self.leftWheel = nil
-    self.rightWheel = nil
+    self.leftWheelInput = 'Axle' .. self.order .. '_LeftWheel'
+    self.rightWheelInput = 'Axle' .. self.order .. '_RightWheel'
+
+    self.leftWheel = wire.ports[self.leftWheelInput]
+    self.rightWheel = wire.ports[self.rightWheelInput]
+
+    hook.add('input', 'wire_axle_update' .. self.order, function(key, val)
+        if key == self.leftWheelInput then
+            self.leftWheel = val
+        end
+
+        if key == self.rightWheelInput then
+            self.rightWheel = val
+        end
+    end)
 end
 
 function Differential:getInputs()
-    local leftWheelName = 'Axle_' + self.order + '_LeftWheel'
-    local rightWheelName = 'Axle_' + self.order + '_RightWheel'
-
     local inputs = {}
 
-    inputs[leftWheelName] = 'entity'
-    inputs[rightWheelName] = 'entity'
+    inputs[self.leftWheelInput] = 'entity'
+    inputs[self.rightWheelInput] = 'entity'
 
     return inputs
 end
+
+function Differential:linkGearbox(gbox)
+    self.gearbox = gbox
+end
+
+function Differential:update()
+    if isValid(self.leftWheel) and isValid(self.rightWheel) then
+        local lwav = math.rad(self.leftWheel:getAngleVelocity()[2])
+        local rwav = math.rad(self.rightWheel:getAngleVelocity()[2]) * -1
+
+        self.avgRPM = (lwav + rwav) / 2 * RAD_TO_RPM * self.finalDrive
+
+        -- RAV = relative anglar velocity
+        local lwrav = rwav - lwav
+        local rwrav = lwav - rwav
+
+        local lwInertia = self.leftWheel:getInertia():getLength()
+        local rwInertia = self.rightWheel:getInertia():getLength()
+
+        local lwtq = lwrav * lwInertia
+        local rwtq = rwrav * rwInertia
+
+        -- Calculating damping torque  here
+        local lwDampingTorque = self.viscousCoeff * lwtq
+        local rwDampingTorque = self.viscousCoeff * rwtq
+
+        -- Whether use diff power or diff coast
+        local usePower = self.gearbox and self.gearbox.torque > self.usePowerBias or false
+        local usedCoeff = usePower and self.power or self.coast
+
+        local lwPowerCoeff = usedCoeff
+        local rwPowerCoeff = usedCoeff
+
+        -- this could probably be shortened?
+        -- if lwtq - rwtq > self.preload then
+        --     lwPowerCoeff = usedCoeff
+        --     rwPowerCoeff = usedCoeff
+        -- end
+
+        -- if rwtq - lwtq > self.preload then
+        --     lwPowerCoeff = usedCoeff
+        --     rwPowerCoeff = usedCoeff
+        -- end
+
+        local lwCorrectingTorque = math.clamp(lwDampingTorque * lwPowerCoeff, -self.maxCorrectingTorque,
+            self.maxCorrectingTorque)
+        local rwCorrectingTorque = math.clamp(rwDampingTorque * rwPowerCoeff, -self.maxCorrectingTorque,
+            self.maxCorrectingTorque)
+
+        local gboxTorque = self.gearbox and self.gearbox.torque or 0
+
+        local driveTorque = gboxTorque * self.distributionCoeff * 52.49 * self.finalDrive
+        local lwCorrectedTorque = lwCorrectingTorque * 600 + driveTorque
+        local rwCorrectedTorque = rwCorrectingTorque * 600 + driveTorque
+
+        self.leftWheel:applyTorque(lwCorrectedTorque * -self.leftWheel:getRight() * TICK_INTERVAL)
+        self.rightWheel:applyTorque(rwCorrectedTorque * self.rightWheel:getRight() * TICK_INTERVAL)
+    end
+end
diff --git a/koptilnya/engine_remastered/engine.txt b/koptilnya/engine_remastered/engine.txt
index 0e94677..2355fc8 100644
--- a/koptilnya/engine_remastered/engine.txt
+++ b/koptilnya/engine_remastered/engine.txt
@@ -28,7 +28,7 @@ function Engine:initialize(config, clutch)
     self._limiterTime = 0
 
     self.clutch = clutch
-    clutch.engine = self
+    clutch:linkEngine(self)
 end
 
 function Engine:getInputs()
diff --git a/koptilnya/engine_remastered/factories/gearbox.txt b/koptilnya/engine_remastered/factories/gearbox.txt
index 2e2d288..e3a29cf 100644
--- a/koptilnya/engine_remastered/factories/gearbox.txt
+++ b/koptilnya/engine_remastered/factories/gearbox.txt
@@ -5,6 +5,6 @@ require('../gearboxes/manual.txt')
 
 GearboxFactory = class('GearboxFactory')
 
-function GearboxFactory.create(config, clutch)
-    return ManualGearbox:new(config, clutch)
+function GearboxFactory.create(...)
+    return ManualGearbox:new(...)
 end
diff --git a/koptilnya/engine_remastered/gearboxes/base.txt b/koptilnya/engine_remastered/gearboxes/base.txt
index ca156e0..cbb4e2c 100644
--- a/koptilnya/engine_remastered/gearboxes/base.txt
+++ b/koptilnya/engine_remastered/gearboxes/base.txt
@@ -1,4 +1,7 @@
-Gearbox = class('Gearbox')
+-- @include ../wire_component.txt
+require('../wire_component.txt')
+
+Gearbox = class('Gearbox', WireComponent)
 
 function Gearbox:initialize(config, clutch, axles)
     self.ratios = config.Ratios
@@ -11,9 +14,40 @@ function Gearbox:initialize(config, clutch, axles)
     self.axles = axles or {}
     self.clutch = clutch
 
+    self.type = config.Type
+
+    clutch:linkGearbox(self)
+
+    for _, axle in pairs(axles) do
+        axle:linkGearbox(self)
+    end
+
     self:recalcRatio()
 end
 
+function Gearbox:getInputs()
+    return {
+        Upshift = 'number',
+        Downshift = 'number'
+    }
+end
+
+function Gearbox:getOutputs()
+    return {
+        Gearbox_RPM = 'number',
+        Gearbox_Torque = 'number',
+        Gearbox_Gear = 'number',
+        Gearbox_Ratio = 'number'
+    }
+end
+
+function Gearbox:updateOutputs()
+    wire.ports.Gearbox_RPM = self.rpm
+    wire.ports.Gearbox_Torque = self.torque
+    wire.ports.Gearbox_Gear = self.gear
+    wire.ports.Gearbox_Ratio = self.ratio
+end
+
 function Gearbox:setGear(gear)
     if gear >= -1 and gear <= #self.ratios then
         self.gear = gear
@@ -36,14 +70,13 @@ function Gearbox:update()
         self.torque = self.clutch.torque * self.ratio
     end
 
-    local axlesRPM = table.map(self.axles, function(diff)
-        return diff.avgRPM
-    end)
+    local maxAxlesRPM = 0
 
-    local maxAxlesRPM = math.max(unpack(axlesRPM))
+    if #self.axles > 0 then
+        maxAxlesRPM = math.max(unpack(table.map(self.axles, function(diff)
+            return diff.avgRPM
+        end)))
+    end
 
     self.rpm = maxAxlesRPM * self.ratio
-end
-
-function Gearbox:shift()
-end
+end
\ No newline at end of file
diff --git a/koptilnya/engine_remastered/gearboxes/manual.txt b/koptilnya/engine_remastered/gearboxes/manual.txt
index 1cd65a9..5688eed 100644
--- a/koptilnya/engine_remastered/gearboxes/manual.txt
+++ b/koptilnya/engine_remastered/gearboxes/manual.txt
@@ -5,30 +5,21 @@ require('./base.txt')
 
 ManualGearbox = class('ManualGearbox', Gearbox)
 
-function ManualGearbox:initialize(config, clutch)
-    Gearbox.initialize(self, config, clutch)
+function ManualGearbox:initialize(...)
+    Gearbox.initialize(self, ...)
 
-    -- self.ratios = config.Ratios
-    -- self.reverse = config.Reverse
+    function shiftFunc()
+        local upshift = wire.ports.Upshift or 0
+        local downshift = wire.ports.Downshift or 0
 
-    -- self.rpm = 0
-    -- self.torque = 0
-    -- self.gear = 0
+        return upshift - downshift
+    end
 
-    -- self:recalcRatio()
-
-    -- self.axles = {}
-    -- self.clutch = nil
-
-    -- self.torque = 0
-
-    -- self.shiftWatcher = watcher(function()
-    --     return wire.ports.Upshift - wire.ports.Downshift
-    -- end, function(val)
-    --     if val ~= 0 then
-    --         self:shift(val)
-    --     end
-    -- end)
+    self.shiftWatcher = watcher(shiftFunc, function(val)
+        if val ~= 0 then
+            self:shift(val)
+        end
+    end)
 end
 
 function ManualGearbox:recalcRatio()
@@ -41,36 +32,23 @@ function ManualGearbox:recalcRatio()
     end
 end
 
-function ManualGearbox:getInputs()
-    return {
-        Upshift = 'number',
-        Downshift = 'number'
-    }
+function ManualGearbox:shift(dir)
+    self:setGear(self.gear + dir)
 end
 
-function ManualGearbox:getOutputs()
-    return {
-        Gearbox_RPM = 'number',
-        Gearbox_Torque = 'number'
-    }
-end
+-- function ManualGearbox:getOutputs()
+--     return {
+--         Gearbox_RPM = 'number',
+--         Gearbox_Torque = 'number'
+--     }
+-- end
 
-function ManualGearbox:updateOutputs()
+-- function ManualGearbox:updateOutputs()
 
-end
+-- end
 
 function ManualGearbox:update()
-    -- if self.clutch ~= nil then
-    --     self.torque = self.clutch.torque * self.ratio
-    -- end
+    Gearbox.update(self)
 
-    -- local axlesRPM = table.map(self.axles, function(diff)
-    --     return diff.avgRPM
-    -- end)
-
-    -- local maxAxlesRPM = math.max(unpack(axlesRPM))
-
-    -- self.rpm = maxAxlesRPM * self.ratio
-
-    -- self.shiftWatcher()
+    self.shiftWatcher()
 end
diff --git a/koptilnya/engine_remastered/vehicle.txt b/koptilnya/engine_remastered/vehicle.txt
index 56e9f35..630f8f1 100644
--- a/koptilnya/engine_remastered/vehicle.txt
+++ b/koptilnya/engine_remastered/vehicle.txt
@@ -2,12 +2,14 @@
 --
 -- @include ./engine.txt
 -- @include ./clutch.txt
+-- @include ./differential.txt
 --
 -- Helpers & stuff
 -- @include ./factories/gearbox.txt
 -- @include /koptilnya/libs/table.txt
 require('./engine.txt')
 require('./clutch.txt')
+require('./differential.txt')
 require('./factories/gearbox.txt')
 
 require('/koptilnya/libs/table.txt')
@@ -23,20 +25,20 @@ function Vehicle:initialize(config)
     self.clutch = Clutch:new(config.Clutch)
     self.engine = Engine:new(config.Engine, self.clutch)
 
+    local axleOrder = 0
     self.axles = table.map(config.Axles, function(config)
-        return Differential:new(config)
+        axleOrder = axleOrder + 1
+        return Differential:new(config, axleOrder)
     end)
 
     self.gearbox = GearboxFactory.create(config.Gearbox, self.clutch, self.axles)
 
-    -- self.axles = table.map(config.Axles, function(config)
-    --     return Differential:new(config)
-    -- end)
     -- self.systems = table.map(config.Systems, function(config)
-    --     return SystemsBuilder:create(config)
+    --     return SystemsFactory.create(config)
     -- end)
 
-    self.components = {self.clutch, self.engine, self.gearbox} -- , self.gearbox, self.clutch}
+    self.components = {self.clutch, self.engine, self.gearbox}
+    self.components = table.add(self.components, self.axles)
     -- self.components = table.add(self.components, self.axles)
     -- self.components = table.add(self.components, self.systems)
 
@@ -50,11 +52,6 @@ function Vehicle:initialize(config)
 
     wire.adjustPorts(inputs, outputs)
 
-    -- for _, ent in self.entities do
-    --     ent:createInputs()
-    --     ent:createOutputs()
-    -- end
-
     hook.add('tick', 'vehicle_update', function()
         local outputs = {}