Yes they are offering the warranty US only at the moment but they expect similar Worldwide. "All warranties and ratings apply to the United States only. Similar warranties and ratings will be developed for other markets."
Currently these are the ratings and such, maybe the ratings you could convert to relevant Au ones. They also have a video on the page and they use 2" hail stones hitting the panels at 100 mph.
Infinity, or the lifetime of your house, whichever comes first
3:12 to vertical
Class 4 FM 4473 (best hail rating)
Class F ASTM D3161 (best wind rating)
Class A UL 790 (best fire rating)
Glass Coating Standards
ASTM C1376 EN 1096 (best in class reliability)
The brackets around comments in the ratings are Tesla's not mine
Found this in relation to the Hail test from a US Roofing site:
"The Factory Mutual 4473 Test
The FM 4473 is another test used to test a roofing material’s ability to withstand damage. In this test, actual balls of ice are used on roofing materials. For the FM 4473 test, two inch balls of ice are shot at a speed of roughly 70 miles onto roofing materials. The Class 4 test is the most rigorous of all ice/hail tests and specimens are subject to impact anywhere from four to six times. As with the UL 2218 test, roofs must pass an extensive visual exam in order to pass the FM 4473. For a covering to receive a Class 4 rating, there must be no evidence of damage such as cracking or breaking."
ASTM Class F D3161:
"ASTM D3161, "ASTM D3161 / D3161M - 13 Standard Test Method for Wind-Resistance of Steep Slope Roofing Products (Fan-Induced Method) ," applies to self-sealing and mechanically interlocking Steep Slope Roofing Products. During testing, test assemblies constructed according to shingle manufacturers' installation instructions are subjected to fan-induced winds of specific velocities for specified durations. Based on the test results, shingles are classified as Class A when the test assembly passes a test wind velocity of 60 mph, Class D when the test assembly passes a test velocity of 90 mph and Class F when the test assembly passes a test velocity of 110 mph. UL 997, "Wind Resistance of Prepared Roof Covering Materials," provides a similar test method and the same shingle wind-uplift resistance classifications."
"These tests are required for the fire resistance performance of roof coverings exposed to simulated fire sources originating from the outside of a building. There are three classes of fire exposure: Class A roof coverings are effective against severe fire test exposures. Class B roof coverings are effective against moderate fire test exposures and Class C roof coverings are effective against light fire test exposures. All three classes are not expected to produce flying brands during fire testing. These can be conducted on a wood combustible deck (sheathing boards or plywood) or a noncombustible deck made of metal, concrete, or poured gypsum."