They’re quoting an ADR test/calculation. In Australia we have this antiquated set of local standards called Australian Design Rules (ADRs)…they were initially brought in back in the late 60s or early 70s (I can’t recall) and were similar to other US FMVSS or EU/ECE standards, but not always the same. It became somewhat of a protectionism for the local automotive industry (RIP) but now that the industry no longer exists (for various reasons, ahem) the ADRs are basically irrelevant. There has been or is talk of moving to allowing any ECE or possibly DOT/US compliant vehicles in, but I believe carmakers must still certify cars to the ADR standards. Fortunately most are now harmonised with ECE, but I think there’s still a few obscure ones that makes it a bit more work to certify a car for Australia.Oh yeah, I'm totally aware of that...was curious though because the difference is notable for Australia and for the single-motor version only!
Here’s what the ** leads to on the Volvo Cars Australia website:
“**Figures according to ADR 81/02 are derived from laboratory testing. Factors including but not limited to driving style, road and traffic conditions, environmental influences, vehicle condition and accessories fitted, means in the real world the range you experience can differ from that advertised. Advertised figures are meant for comparison purposes.”
Some light reading for you if interested in ADRs:
Australian Design Rules
The Australian Design Rules (ADRs) are national standards for vehicle safety, anti-theft and emissions. The ADRs are generally performance based and cover issues such as occupant protection, structures, lighting, noise, engine exhaust emissions, braking and a range of miscellaneous items.