diff --git a/automotive/vehicle/2.1/default/Android.bp b/automotive/vehicle/2.1/default/Android.bp
new file mode 100644
index 0000000..0697767
--- /dev/null
+++ b/automotive/vehicle/2.1/default/Android.bp
@@ -0,0 +1,84 @@
+// Copyright (C) 2017 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//       http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+cc_defaults {
+    name: "vhal_v2_1_defaults",
+    defaults: ["vhal_v2_0_defaults"],
+    shared_libs: [
+        "libhwbinder",
+        "android.hardware.automotive.vehicle@2.1",
+    ],
+}
+
+// Vehicle reference implementation lib
+cc_library_static {
+    name: "android.hardware.automotive.vehicle@2.1-manager-lib",
+    defaults: ["vhal_v2_1_defaults"],
+    srcs: [
+        "common/src/Obd2SensorStore.cpp",
+    ],
+    local_include_dirs: ["common/include/vhal_v2_1"],
+    header_libs: ["vhal_v2_0_common_headers"],
+    export_include_dirs: ["common/include"],
+}
+
+// Vehicle default VehicleHAL implementation
+cc_library_static {
+    name: "android.hardware.automotive.vehicle@2.1-default-impl-lib",
+    defaults: ["vhal_v2_1_defaults"],
+    srcs: [
+        "impl/vhal_v2_1/EmulatedVehicleHal.cpp",
+    ],
+    local_include_dirs: [
+        "impl/vhal_v2_1",
+        "common/include",
+    ],
+    export_include_dirs: [
+        "impl",
+        "common/include",
+    ],
+    static_libs: [
+        "android.hardware.automotive.vehicle@2.0-default-impl-lib",
+        "android.hardware.automotive.vehicle@2.0-libproto-native",
+        "android.hardware.automotive.vehicle@2.0-manager-lib",
+        "android.hardware.automotive.vehicle@2.1-manager-lib",
+        "libqemu_pipe",
+    ],
+    shared_libs: [
+        "libbase",
+        "libprotobuf-cpp-lite",
+    ],
+}
+
+cc_binary {
+    name: "android.hardware.automotive.vehicle@2.1-service",
+    defaults: ["vhal_v2_1_defaults"],
+    init_rc: ["android.hardware.automotive.vehicle@2.1-service.rc"],
+    proprietary: true,
+    relative_install_path: "hw",
+    srcs: ["service.cpp"],
+    whole_static_libs: ["android.hardware.automotive.vehicle@2.0-libproto-native"],
+    static_libs: [
+        "android.hardware.automotive.vehicle@2.0-default-impl-lib",
+        "android.hardware.automotive.vehicle@2.0-manager-lib",
+        "android.hardware.automotive.vehicle@2.1-default-impl-lib",
+        "android.hardware.automotive.vehicle@2.1-manager-lib",
+        "libqemu_pipe",
+    ],
+    shared_libs: [
+        "libbase",
+        "libhwbinder",
+        "libprotobuf-cpp-lite",
+    ],
+}
diff --git a/automotive/vehicle/2.1/default/Android.mk b/automotive/vehicle/2.1/default/Android.mk
deleted file mode 100644
index f19263c..0000000
--- a/automotive/vehicle/2.1/default/Android.mk
+++ /dev/null
@@ -1,121 +0,0 @@
-# Copyright (C) 2016 The Android Open Source Project
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-LOCAL_PATH := $(call my-dir)
-
-vhal_v2_0 = android.hardware.automotive.vehicle@2.0
-vhal_v2_1 = android.hardware.automotive.vehicle@2.1
-
-###############################################################################
-# Vehicle reference implementation lib
-###############################################################################
-include $(CLEAR_VARS)
-LOCAL_MODULE := $(vhal_v2_1)-manager-lib
-LOCAL_SRC_FILES := \
-    common/src/Obd2SensorStore.cpp
-
-LOCAL_C_INCLUDES := \
-    $(LOCAL_PATH)/common/include/vhal_v2_1 \
-    $(LOCAL_PATH)/../../2.0/default/common/include/vhal_v2_0 \
-
-LOCAL_EXPORT_C_INCLUDE_DIRS := \
-    $(LOCAL_PATH)/common/include
-
-LOCAL_SHARED_LIBRARIES := \
-    libhidlbase \
-    libhidltransport \
-    libhwbinder \
-    liblog \
-    libutils \
-    $(vhal_v2_1) \
-
-include $(BUILD_STATIC_LIBRARY)
-
-###############################################################################
-# Vehicle default VehicleHAL implementation
-###############################################################################
-include $(CLEAR_VARS)
-
-LOCAL_MODULE:= $(vhal_v2_1)-default-impl-lib
-LOCAL_SRC_FILES:= \
-    impl/vhal_v2_1/EmulatedVehicleHal.cpp \
-
-LOCAL_C_INCLUDES := \
-    $(LOCAL_PATH)/impl/vhal_v2_1 \
-    $(LOCAL_PATH)/common/include
-
-LOCAL_EXPORT_C_INCLUDE_DIRS := \
-    $(LOCAL_PATH)/impl \
-    $(LOCAL_PATH)/common/include
-
-
-# LOCAL_WHOLE_STATIC_LIBRARIES := \
-
-LOCAL_STATIC_LIBRARIES := \
-    $(vhal_v2_0)-default-impl-lib \
-    $(vhal_v2_0)-manager-lib \
-    libqemu_pipe \
-    $(vhal_v2_1)-manager-lib \
-    $(vhal_v2_0)-libproto-native
-
-LOCAL_SHARED_LIBRARIES := \
-    libbase \
-    libhidlbase \
-    libhidltransport \
-    libhwbinder \
-    liblog \
-    libutils \
-    libprotobuf-cpp-lite \
-    $(vhal_v2_0) \
-    $(vhal_v2_1) \
-
-LOCAL_CFLAGS += -Wall -Wextra -Werror
-
-include $(BUILD_STATIC_LIBRARY)
-
-###############################################################################
-# Vehicle HAL service
-###############################################################################
-include $(CLEAR_VARS)
-LOCAL_MODULE := $(vhal_v2_1)-service
-LOCAL_INIT_RC := $(vhal_v2_1)-service.rc
-LOCAL_MODULE_RELATIVE_PATH := hw
-LOCAL_PROPRIETARY_MODULE := true
-LOCAL_SRC_FILES := \
-    service.cpp
-
-LOCAL_WHOLE_STATIC_LIBRARIES := \
-    $(vhal_v2_0)-libproto-native \
-
-LOCAL_STATIC_LIBRARIES := \
-    $(vhal_v2_0)-manager-lib \
-    $(vhal_v2_0)-default-impl-lib \
-    $(vhal_v2_1)-default-impl-lib \
-    libqemu_pipe \
-    $(vhal_v2_1)-manager-lib \
-
-LOCAL_SHARED_LIBRARIES := \
-    libbase \
-    libhidlbase \
-    libhidltransport \
-    libhwbinder \
-    liblog \
-    libutils \
-    libprotobuf-cpp-lite \
-    $(vhal_v2_0) \
-    $(vhal_v2_1) \
-
-LOCAL_CFLAGS += -Wall -Wextra -Werror
-
-include $(BUILD_EXECUTABLE)