diff --git a/automotive/evs/1.0/vts/functional/Android.bp b/automotive/evs/1.0/vts/functional/Android.bp
index 8988bfd..9f7cd3f 100644
--- a/automotive/evs/1.0/vts/functional/Android.bp
+++ b/automotive/evs/1.0/vts/functional/Android.bp
@@ -28,7 +28,7 @@
         "android.hardware.automotive.evs@1.0",
         "android.hardware.automotive.evs@common-default-lib",
     ],
-    test_suites: ["general-tests"],
+    test_suites: ["vts-core"],
     cflags: [
         "-O0",
         "-g",
diff --git a/automotive/evs/1.0/vts/functional/VtsHalEvsV1_0TargetTest.cpp b/automotive/evs/1.0/vts/functional/VtsHalEvsV1_0TargetTest.cpp
index f7580f0..54862a2 100644
--- a/automotive/evs/1.0/vts/functional/VtsHalEvsV1_0TargetTest.cpp
+++ b/automotive/evs/1.0/vts/functional/VtsHalEvsV1_0TargetTest.cpp
@@ -17,15 +17,6 @@
 #define LOG_TAG "VtsHalEvsTest"
 
 
-// Note:  We have't got a great way to indicate which target
-// should be tested, so we'll leave the interface served by the
-// default (mock) EVS driver here for easy reference.  All
-// actual EVS drivers should serve on the EvsEnumeratorHw name,
-// however, so the code is checked in that way.
-//const static char kEnumeratorName[]  = "EvsEnumeratorHw-Mock";
-const static char kEnumeratorName[]  = "EvsEnumeratorHw";
-
-
 // These values are called out in the EVS design doc (as of Mar 8, 2017)
 static const int kMaxStreamStartMilliseconds = 500;
 static const int kMinimumFramesPerSecond = 10;
@@ -53,8 +44,9 @@
 #include <android/hardware/automotive/evs/1.0/IEvsCameraStream.h>
 #include <android/hardware/automotive/evs/1.0/IEvsDisplay.h>
 
-#include <VtsHalHidlTargetTestBase.h>
-#include <VtsHalHidlTargetTestEnvBase.h>
+#include <gtest/gtest.h>
+#include <hidl/GtestPrinter.h>
+#include <hidl/ServiceManagement.h>
 
 using namespace ::android::hardware::automotive::evs::V1_0;
 using ::android::hardware::Return;
@@ -64,32 +56,19 @@
 using ::android::hardware::hidl_string;
 using ::android::sp;
 
-// Test environment for Evs HIDL HAL.
-class EvsHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
-   public:
-    // get the test environment singleton
-    static EvsHidlEnvironment* Instance() {
-        static EvsHidlEnvironment* instance = new EvsHidlEnvironment;
-        return instance;
-    }
-
-    virtual void registerTestServices() override { registerTestService<IEvsEnumerator>(); }
-
-   private:
-    EvsHidlEnvironment() {}
-};
-
 // The main test class for EVS
-class EvsHidlTest : public ::testing::VtsHalHidlTargetTestBase {
+class EvsHidlTest : public ::testing::TestWithParam<std::string> {
 public:
     virtual void SetUp() override {
         // Make sure we can connect to the enumerator
-        string service_name =
-            EvsHidlEnvironment::Instance()->getServiceName<IEvsEnumerator>(kEnumeratorName);
-        pEnumerator = getService<IEvsEnumerator>(service_name);
+        std::string service_name = GetParam();
+        pEnumerator = IEvsEnumerator::getService(service_name);
+
         ASSERT_NE(pEnumerator.get(), nullptr);
 
-        mIsHwModule = !service_name.compare(kEnumeratorName);
+        // "default" is reserved for EVS manager.
+        constexpr static char kEvsManagerName[] = "default";
+        mIsHwModule = service_name.compare(kEvsManagerName);
     }
 
     virtual void TearDown() override {}
@@ -130,7 +109,7 @@
  * Opens each camera reported by the enumerator and then explicitly closes it via a
  * call to closeCamera.  Then repeats the test to ensure all cameras can be reopened.
  */
-TEST_F(EvsHidlTest, CameraOpenClean) {
+TEST_P(EvsHidlTest, CameraOpenClean) {
     ALOGI("Starting CameraOpenClean test");
 
     // Get the camera list
@@ -162,7 +141,7 @@
  * call.  This ensures that the intended "aggressive open" behavior works.  This is necessary for
  * the system to be tolerant of shutdown/restart race conditions.
  */
-TEST_F(EvsHidlTest, CameraOpenAggressive) {
+TEST_P(EvsHidlTest, CameraOpenAggressive) {
     ALOGI("Starting CameraOpenAggressive test");
 
     // Get the camera list
@@ -216,7 +195,7 @@
  * DisplayOpen:
  * Test both clean shut down and "aggressive open" device stealing behavior.
  */
-TEST_F(EvsHidlTest, DisplayOpen) {
+TEST_P(EvsHidlTest, DisplayOpen) {
     ALOGI("Starting DisplayOpen test");
 
     // Request exclusive access to the EVS display, then let it go
@@ -264,7 +243,7 @@
  * Validate that display states transition as expected and can be queried from either the display
  * object itself or the owning enumerator.
  */
-TEST_F(EvsHidlTest, DisplayStates) {
+TEST_P(EvsHidlTest, DisplayStates) {
     ALOGI("Starting DisplayStates test");
 
     // Ensure the display starts in the expected state
@@ -324,7 +303,7 @@
  * CameraStreamPerformance:
  * Measure and qualify the stream start up time and streaming frame rate of each reported camera
  */
-TEST_F(EvsHidlTest, CameraStreamPerformance) {
+TEST_P(EvsHidlTest, CameraStreamPerformance) {
     ALOGI("Starting CameraStreamPerformance test");
 
     // Get the camera list
@@ -387,7 +366,7 @@
  * Ensure the camera implementation behaves properly when the client holds onto buffers for more
  * than one frame time.  The camera must cleanly skip frames until the client is ready again.
  */
-TEST_F(EvsHidlTest, CameraStreamBuffering) {
+TEST_P(EvsHidlTest, CameraStreamBuffering) {
     ALOGI("Starting CameraStreamBuffering test");
 
     // Arbitrary constant (should be > 1 and less than crazy)
@@ -456,7 +435,7 @@
  * imagery is simply copied to the display buffer and presented on screen.  This is the one test
  * which a human could observe to see the operation of the system on the physical display.
  */
-TEST_F(EvsHidlTest, CameraToDisplayRoundTrip) {
+TEST_P(EvsHidlTest, CameraToDisplayRoundTrip) {
     ALOGI("Starting CameraToDisplayRoundTrip test");
 
     // Get the camera list
@@ -517,7 +496,7 @@
  * Verify that each client can start and stop video streams on the same
  * underlying camera.
  */
-TEST_F(EvsHidlTest, MultiCameraStream) {
+TEST_P(EvsHidlTest, MultiCameraStream) {
     ALOGI("Starting MultiCameraStream test");
 
     if (mIsHwModule) {
@@ -601,11 +580,8 @@
 }
 
 
-int main(int argc, char** argv) {
-    ::testing::AddGlobalTestEnvironment(EvsHidlEnvironment::Instance());
-    ::testing::InitGoogleTest(&argc, argv);
-    EvsHidlEnvironment::Instance()->init(&argc, argv);
-    int status = RUN_ALL_TESTS();
-    ALOGI("Test result = %d", status);
-    return status;
-}
+INSTANTIATE_TEST_SUITE_P(
+    PerInstance,
+    EvsHidlTest,
+    testing::ValuesIn(android::hardware::getAllHalInstanceNames(IEvsEnumerator::descriptor)),
+    android::hardware::PrintInstanceNameToString);