Although Tesla doesn’t suggest the range to be subject to conditions, therefore one cannot assume either way. However, what one can assume is that this range is subject to reasonable conditions.They did not promise you could drive 150 km in any conditions, with any load, at any speed, etc. And no you certainly could not drive 150km in any conditions prior to V10. It may have reported that the estimated range was 150km before V10...
But in any case your warranty is only for 70% of 150km. And your available range will suffer from degradation and conditions.
The SR+ had the "EPA Estimate" on it because that is a car subject to EPA ratings and it hadn't completed the EPA certification process yet. The SR you got isn't subject to EPA requirements is it? (What does Canada require for range ratings?)
Canada has its own fuel economy system. The very car is rated for 151KM in fact.
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https://www.nrcan.gc.ca/sites/www.n...s/fuelratings/2019 Fuel Consumption Guide.pdf