I have owned both. Had a 2016 4runner trail premium. It was an amazing vehicle but one thing I hated was a car payment. I hated having car payments. Then I made the mistake of test driving a 100 series. The build quality is better on the 100 series and it gives almost all the creature comforts of the 5th gen. Some things that bugged me on the 4runner... non locking gas door, no automatic headlights, very very very dated tech, cheaper feeling materials. Again I loved my 4runner but I have not missed it one bit with ownership of 2 100 series land cruisers. If I was set on getting a slightly newer vehicle I would give a hard look at the GX 460, gx470 or the 200 series. All are not as expensive as you would think. I see 200s for low 20s all day. Yes they have miles but if you understand what you are buying then it is non issue.