Battery power density has been getting slowly better in the last 10-15 years. It seems reasonable to me that within the next 5ish years or so, we'll hit a point where a vehicle in the same price/class as a Model Y could have a 400-500 mile range with a battery pack about the same size.
What would that look like?
Immediately, that would render ICE cars as daily drivers basically obsolete. A 500 mile range would be a tipping point, as it would alleviate nearly all concerns that most people have about EVs.
Off the top of my head, here's what you'd get with a 500 mile range EV.
- Range is good for around 6-1/2 hours of driving, so that would assuredly close the time gap between ICE and EVs for long road trips
- Allows for longer range trips into places with little or no charging infrastructure, like for camping
- Would reduce concerns about battery degradation
- Would alleviate concerns about reduced power/range in cold weather
- Much less worry about vampire drain from Sentry Mode, Camp Mode, etc.
- Enables towing ranges of ~150+ miles
- Allow for longer usable life of the vehicle
- Opens up more possibilities for using your EV to charge/run tools, camping equipment, electric bikes, etc.
- Makes vehicle-to-grid/home technology more enticing
All other variables being equal, a Model Y with a 400-500 mile range would basically be the stake through the heart of ICE vehicles.