Personally, I hate the KD engines. Plus, the 2KD isn't easily available.
Secondly, I'd recommend petrol over diesel so 1FZ-FE.
In terms of torque, the 1FZ-FE and 1KZ-TE are pretty much on par.
But on the highway, the 1FZ-FE is gonna beat the **** out of a 2KD.
If I were you I'd get the 1FZ-FE without any hesitation.
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