diff --git a/car.capnp b/car.capnp
index 5b24e0efd..afa33231f 100644
--- a/car.capnp
+++ b/car.capnp
@@ -524,6 +524,9 @@ struct CarParams {
     steeringAngleDeadzoneDeg @5 :Float32;
     latAccelFactor @6 :Float32;
     latAccelOffset @7 :Float32;
+    latVelFactor @8 :Float32;
+    latAngleFactor @9 :Float32;
+    linear @10 :Bool;
   }
 
   struct LongitudinalPIDTuning {
@@ -596,6 +599,7 @@ struct CarParams {
     hongqi @26;
     body @27;
     hyundaiCanfd @28;
+    mazda2019 @29;
   }
 
   enum SteerControlType {