Turned in an 06' LR3 for an 11' LR4.
On the outside, the initial look is the usual Jedi mind trick of changing the tail/head lights and a few other cosmetic alterations.
However... the first word that comes to mind is smoooooooth.
LR3, rough transition from a light, very jerky.
LR4, smooth as silk.
Improved suspension and ride in the LR4, sharper interior. More power!!! 375 hp.
The look, great visibility.
Very smooth ride.
Like that they integrated the fender flairs with the body of the vehicle.
The LR3 had these cheesy plastic looking things that looked like garbage.
NAV is slow.
The rear camera stays on the screen when in drive for about 30 seconds while going forward.
They took out the fridge in the center console because (according to the dealer) it was the crux of a lot of electrical breakdowns.
They pulled the fridge out of everything.
The center clock is a little cheesy too.