I had a Yamaha Rhino, we bought it new in 04 (the first year they were released) and it was a good machine the whole time we owned it. When we bought it we didn't have a lot of options in the side by side market (and my wife was pregnant with our daughter) but we thought we could make due with two seats. We did make due I added a seat in the rear as our daughter got older and could not sit in my wife's lap any longer, but after one ride we just felt it was too unsafe (and it was) so we ended up just parking it for family use (family trail ride adventures), I would still hunt with it but all three of us couldn't go so it ended up sitting so long between uses the battery would go dead. Then I decided to just sell it, but my wife and I hated the idea of not having something to ride since we all enjoy riding so much. So we started shopping a whole lot we looked at everything out there. To give a little back ground on my situation my wife is an RN Risk Manager (a nurse who looks for EVERYTHING wrong) and the P4 was the only thing out there that filled the bill for what we wanted so all three of us could enjoy family adventures together safely. That is the reason I would suggest the 4. So bite the bullet spend the extra money and have fun with the whole family, we did and I am glad of it....