I guess they're not really new anymore, but I'm thinking about buying one of the newer 4 door unlimited jeeps, as they're much more family friendly than the 2dr I have now. Is the new V6 motor better than the tried and true 4.0? I love my TJ, but I'm not super thrilled with the top end speed or mileage. Has any of this stuff improved?
A lot of people pooh-pooh the new motor. It has torque, but at a higher RPM, which isn't as useful. I can't say anything about longevity etc. When you get into the throttle and kick down the auto, the 4 door moves good, but if it is in OD and the torque converter is locked up, it doesn't have the oomph even for relatively small hills (but then, neither does my TJ really).
The top speed I guess is decent, I haven't pegged it out to the limiter etc. The wee bit of aerodynamics help some.
The mileage depends on driving habits, I can get not bad out of it, a bit better than I can squeeze out of my '04 TJ Rubi, but then the 4 door is auto and my rubi is stick.
Having the 4 doors and extra room with a family is definitely appreciated however!
When the 4 door turbo diesel becomes available (or perhaps an electric drive hybrid) so the mileage and torque *both* improve, then I'd have another look.
Oh yes and AV's comment about it all being plastic or thin body metal is very true... eek!