Seems likely by the time any of the competition is shipping in reasonable numbers (already hearing complaints of limited battery supply from the German companies) there's likely to be a model S with the improve battery pack based on the same tech as the model 3.
[1] https://electrek.co/2018/09/07/bmw-i3-100-kwh-battery-pack-l...
The main problem is unlike ICE cars that generally have so much wasted energy that temperature, speed, terrain, and driving style do not have a particularly large impact on range. In comparison electric cars are so efficient that elevation changes, cold temperatures, and running the AC or heater can make big differences. In particular speed can make a huge difference. A model 3 with a 300 or so mile range can go over 600 miles when hyper miling. To help with that the community consensus is to take all range estimates with a grain of salt until you see the EPA range.
Said claimed 435 mile range was not tested by the EPA.
Keep in mind that the battery packs Audi e-tron is using is as almost the same size (95 kw vs 100 kw), but is providing radically less range (208 miles vs 370). So clearly the Tesla is crazy more efficient. Given the expense and weight of the batteries, clearly Audi would have made a more efficient car... if they could.