You should consider buying a Model 3 instead of a used Model S because of the following reasons:
1. You get more range with 3 than S if we exclude the 100 kWh S versions. See the range table below.
2. You will get $7,500 federal tax credits if you take delivery by the end of the year. Tesla has Model 3 inventory waiting for instant deliveries. See Elon's tweet
here yesterday. If the Model 3 can't be delivered this year, you get a full refund.
3. You get $2,500 California state rebate. See the details here:
Electric Vehicle Incentives That's $10K off of a new Model 3 compared to a used Model S. You get none of the $10K if you buy used.
4. Don't buy AP1.0. You won't experience any of the upcoming and exciting software updates in 2019. Also, you will be stuck with the old hardware and won't be able to upgrade. You would need to buy a Model S with AP2.0 or AP2.5 produced after 16 Oct 2016 to be able to upgrade to AP3.0. That means you would pay too much for a used car and even then some of the other technology is still not as advanced as the Model 3. See details
here.
- Autopilot 1.0 hardware was released on 19 Sep 2014. The software development for AP1.0 is complete except cosmetic improvements.
- AP2.0 hardware was released on 16 Oct 2016. It has 8 cameras and a more powerful computer.
- AP2.5 hardware was released on 14 Mar 2018. Again it has 8 cameras but it has a liquid cooled and more powerful computer instead of air cooled and slower computer. Also, the range of the ultrasonic sensors have improved.
- AP3.0 will be released in early 2019. It will have a 10x more powerful computer compared to AP2.5. Fully-Self-Driving will only work with AP3.0. Tesla owners who have already purchased the FSD option will get a free hardware upgrade from AP2.0 or AP2.5 to AP3.0. Other owners who have AP2.0 or AP2.5 will have the option to upgrade to AP3.0. AP 3.0 is expected to be released either in January or April 2019. See the reason here why Jan or Apr.
5. Model 3 is likely to support Supercharger V3 but the S is not. See my tweet
here.
6. It costs less to charge the Model 3. Pick two Teslas
here and compare. Look at the kWh number per 100 miles. These are electric meter consumption numbers. The difference will compensate for free supercharging.
7. The touchscreen will be slower in older Model S. Tesla upgraded the touchscreen of S/X to Model 3 quality on 14 March 2018.
8. The 90 kWh pack has heavy degradation issues. See
this thread. Normally, battery degradation in Tesla cars looks like
this.
If you need maximum range but don't need AWD, Tesla might still have some Model 3 LR in stock. Visit a store.
In the future, the latest version of this table can be found here:
Tesla Range Table - Teslike.com