A wonderful vehicle, but does it justify its $5,000 price bump?

Dude, there's a mouse in your Lexus.

That odd hump and knob on the center console of the 2010 Lexus RX 450h is a mouse…the computer variety. Placement is ideal, as the driver's hand falls right on top of the unit when the forearm is placed on the center armrest. Unlike more complicated systems including BMW's iDrive or Audi's MMI, my tester's setup didn't incorporate all of the climate and audio controls. A simple menu button brings up a limited array of options; I focused on basic navigation. This piece of Lexus hardware works much like your computer's mouse, but I found that a fairly delicate touch was needed while scrolling through the alphabet to spell a destination's address.

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