Decrease default car weight to 2 tons (#5371)

* Decrease default car weight to 2 tons
* Add a link to PR to the change log

Author: Zverik

CHANGELOG.md

@@ -8,6 +8,7 @@
       - ADDED: new API parameter - `snapping=any|default` to allow snapping to previously unsnappable edges [#5361](https://github.com/Project-OSRM/osrm-backend/pull/5361)
     - Routing:
       - CHANGED: allow routing past `barrier=arch` [#5352](https://github.com/Project-OSRM/osrm-backend/pull/5352)
+      - CHANGED: default car weight was reduced to 2000 kg. [#5371](https://github.com/Project-OSRM/osrm-backend/pull/5371)
 
 # 5.21.0
   - Changes from 5.20.0

features/car/physical_limitation.feature

@@ -62,6 +62,7 @@ Feature: Car - Handle physical limitation
             | highway | maxweight | bothw |
             | primary |           | x     |
             | primary | 1         |       |
+            | primary | 2         | x     |
             | primary | 3.5       | x     |
             | primary | 35000 kg  | x     |
             | primary | 8.9t      | x     |

profiles/car.lua

@@ -44,7 +44,7 @@ function setup()
 
     -- Size of the vehicle, to be limited mostly by legal restriction of the way
     vehicle_length = 4.8, -- in meters, 4.8m is the length of large or familly car
-    vehicle_weight = 3500, -- in kilograms
+    vehicle_weight = 2000, -- in kilograms
 
     -- a list of suffixes to suppress in name change instructions. The suffixes also include common substrings of each other
     suffix_list = {