I also own a 2003 Discovery SE, and the LR3 is a very different car. Some improvements were made, but other changes were steps backward. It's MUCH smoother on the pavement due to a less stiff suspension, but the 4.4L 300HP engine (while zippy in passing performance) has a 1-2 second lag between the time I step on the gas and the time it actually responds. My 4.6L 217HP Disco SE has already taken off like a rocket while the LR3 is still thinking about it. Very quiet inside - the engine is nearly silent. I don't like that the LR3 SE trim is more industrial (and less "classy") than the Disco SE. Overall performance is great, but little tweaks were missed.
Unmatched offroading. Harmon Kardon stereo is amazing. Turning radius much improved. Super road grip. Much easier rear-seat egress. Less tippy in turns. Smooth as silk on the pavement - wet or dry.
Why did LR move the window controls and passenger seat controls out of reach of the driver?? Serious accelerator lag. Miss the back sunroof. Fuel economy is worse than abysmal. It's entirely too easy to accidentally flip on the brights. More generic seats and outer styling than the Discovery.
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