@RedLoubs&wine, this car has the black plastic nosecone. That means it was manufactured before 12 Apr 2016 because that's when Tesla stopped making the nosecone version. Looking at the VIN ~122,900, I estimate that it was manufactured on 21st January 2016.
This is the rear-wheel-drive Model S 75, not the AWD 75D. It means this car is comparable to the Model 3 Mid-Range because both cars are rear-wheel-drive and both have similar range numbers. Here is my comparison:
- This car has 11 months left on the warranty compared to 4 years for a new Model 3 MR.
- Model S 75 has 214 miles range at 75 mph when new compared to 233 for the Model 3 MR. See the table here.
- This Model S 75 has Autopilot 1.0 hardware with a single camera. The Model 3 MR has Autopilot 2.5 hardware with 7 cameras and a liquid cooled faster computer.
- Model S 75 has a slower touchscreen. The touchscreen in Model S/X was upgraded to Model 3 quality on 14 March 2018. See the article here.
- This Model S 75 has the plastic nosecone which was discontinued on 12 April 2016. See the article here. Therefore this is a dead giveaway that this is an older Model S. Some people consider the plastic nosecone uncool. Model 3 doesn't have this issue.
- This Model S 75 has the metal roof instead of the all-glass roof or the sliding panoramic glass roof. That means you won't be able to attach a roof rack. Model S with sliding panoramic roof (pano roof) supports roof racks. Until now the all-glass version didn't support roof racks but Tesla has just announced a retrofit that enables roof racks for all-glass Model S. Details can be found here. However, this doesn't help with this specific car because it has the metal roof. The Model 3 supports roof racks.
- This Model S 75 won't support Sentry Mode, Blind Support Chime or 'Navigate on Autopilot' even if you purchase the $7,000 Autopilot option because these features require Autopilot 2.0 or newer hardware. The Model 3 MR will have those options if you purchase Autopilot.
- It doesn't seem like this car has Autopilot enabled because it's not mentioned anywhere. You would have to pay $2,000 penalty to enable it now for $7,000 instead of $5,000.
- This S75 without Autopilot costs $45,000. In comparison, a new Model 3 MR without AP costs $42,900, plus you will get $3,750 back in federal tax credits. That lowers the price to $39,150. You would be paying $5,850 more.
For those reasons, a Model 3 MR might be a better choice.