diff --git a/car.capnp b/car.capnp
index e6c9df5dd..6c0cf2b07 100644
--- a/car.capnp
+++ b/car.capnp
@@ -117,6 +117,9 @@ struct CarState {
   # gear
   gearShifter @14 :GearShifter;
 
+  # clutch (manual transmission only)
+  clutchPressed @27 :Bool;
+
   # button presses
   buttonEvents @11 :List(ButtonEvent);
   leftBlinker @20 :Bool;
@@ -341,6 +344,7 @@ struct CarParams {
   openpilotLongitudinalControl @37 :Bool; # is openpilot doing the longitudinal control?
   carVin @38 :Text; # VIN number queried during fingerprinting
   isPandaBlack @39: Bool;
+  transmissionType @40 :TransmissionType; # What type of transmission do we have?
 
   struct LateralPIDTuning {
     kpBP @0 :List(Float32);
@@ -402,4 +406,10 @@ struct CarParams {
     torque @0;
     angle @1;
   }
+
+  enum TransmissionType {
+    unknown @0;
+    automatic @1;
+    manual @2;
+  }
 }