My local Tesla store let me have a P100D for an overnight rental. I can't say I didn't have a great time, because I did. But from my experience, even though the acceleration from 0 was noticeably faster, it wasn't enough to justify the $148k price on the model I drove, compared to what I paid for my P85D CPO. The interior was basically the same. The biggest differences in the P100D I was given, compared to my P85D, was the extra range (315 miles vs 254 - at 100% charge), and more torque at higher speeds, and obviously the front fascia without the nose cone. But neither one really affects me enough to want an upgrade. The extra range would be nice, but the listed 2.5 0-60 from the P100D vs the listed 3.2 0-60 from the P85D is a 0.7 sec difference. I know there are more performance upgrades, (especially at higher speeds), but I'm writing this post to help potential P85D buyers. I had a lot of fun in the P100D, but still felt like I was at home when I sat back down into the seat of my P85D. You're not making a bad decision by buying CPO. Just make sure you're doing your research when buying CPO. Right now, the prices are far too high. And if you're buying a P85D, make sure it has the + suspension. Every build before March 2015, but most models in March still had it.