Test Drive also benefits from increased depth resolution. See #17188.

Doesn't affect the map screen issue though, #12786

assets/compat.ini

@@ -413,6 +413,7 @@ NPJH50220 = true
 ULJM05799 = true
 ULKS46248 = true
 # Test Drive Unlimited
+ULET00386 = true
 ULUS10249 = true
 ULES00637 = true
 ULKS46126 = true
@@ -1093,6 +1094,12 @@ NPJH50371 = true
 ULUS10428 = true
 ULES01333 = true
 
+# Test Drive Unlimited
+ULET00386 = true
+ULUS10249 = true
+ULES00637 = true
+ULKS46126 = true
+
 [DateLimited]
 # Car Jack Streets - issue #12698
 NPUZ00043 = true