diff --git a/api/db.py b/api/db.py
index f36462a..1b314b6 100644
--- a/api/db.py
+++ b/api/db.py
@@ -122,6 +122,7 @@ class Database:
                 script_mode     TEXT,
                 transport       TEXT,          -- 'bt' | 'tcp'
                 mock_mode       INTEGER DEFAULT 0,
+                car_info        TEXT,
 
                 -- LLM
                 diagnosis_text  TEXT,
@@ -199,11 +200,12 @@ class Database:
                 vin, dtc_count, pid_count,
                 duration_ms, response_count, error_count,
                 retry_count, timeout_count, script_mode,
-                transport, mock_mode,
+                transport, mock_mode, car_info,
                 diagnosis_text, diagnosis_len, llm_model,
                 llm_duration_ms, llm_success,
                 raw_responses, request_id, response_json
-            ) VALUES (?,?,?,?, ?,?,?,?,?, ?,?,?,?,?, ?,?,?, ?,?,?, ?,?,?, ?,?,?, ?,?, ?,?,?,?, ?,?,?,?)
+            ) VALUES (?,?,?,?, ?,?,?,?,?, ?,?,?,?,?, ?,?,?, ?,?,?, ?,?,?, ?,?,?, ?,?, ?,?,?,?, ?,?,?,?,?)
+              
         """, (
             ci.get("client_ip"), ci.get("real_ip"), ci.get("user_agent"),
             ci.get("content_length"),
@@ -216,6 +218,7 @@ class Database:
             ci.get("duration_ms"), len(responses), ci.get("error_count", 0),
             ci.get("retry_count", 0), ci.get("timeout_count", 0),
             ci.get("script_mode"), ci.get("transport"), ci.get("mock_mode", 0),
+            ci.get("car_info", ""),
             diagnosis, len(diagnosis), llm_model,
             llm_duration_ms, 1 if llm_success else 0,
             json.dumps(responses, ensure_ascii=False) if responses else None,
diff --git a/api/routes.py b/api/routes.py
index 443dcec..c22f67e 100644
--- a/api/routes.py
+++ b/api/routes.py
@@ -115,6 +115,7 @@ def register(app):
 
         parsed = parse_batch(responses)
         car_info = (data.get("car_info") or "").strip()
+        client_info["car_info"] = car_info
 
         cfg = load()
         api_key = cfg["llm"]["api_key"]