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Comment by magicbuzz | Hacker News Reader

Actually they're quoting 660km on https://www.tesla.com/en_AU/models/design#battery

That's according to the NEDC test cycle which is the most optimistic (and therefore the least useful) range estimate. The three test cycles that are typically used are:

NEDC (too optimistic): https://en.wikipedia.org/wiki/New_European_Driving_Cycle

WLTP (better than NEDC, still a little optimistic): https://en.wikipedia.org/wiki/Worldwide_harmonized_light_veh...

EPA (the most conservative): https://en.wikipedia.org/wiki/FTP-75

The WLTP figures are okay, but I think EPA test cycle is the most useful because it's the most consecutive and most representative of real world driving.

My S 75D has 384km range (not really near the EPA 417km) and it is approximately 21 % optimistic which I would not call "little".

Route planners (ABRP, previously Tesla) will not let you drive 300km without charging, because you would arrive with less than 10 % SoC.

I wonder if NEDC/WLTP/EPA just ignore heating and A/C entirely? That's not a big issue for ICE, but it would be for an EV.

That's why I only care about range at highway speeds. It's the only situation where range actually matters to me, since I can usually charge before/after short (non-highway) tours. Here the Teslas still have a big lead and the new versions, if the 10-12% improvement is available for all speeds, will now very likely reach 500 Km (at 130 Km/h) range. Which is awesome and possibly a worthwhile upgrade (+30%) from my S90D.

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