If it is in such good shape as you said don't be afraid to push it, of course respect your local speed limit but I don't think that it will fall apart on you <img src="/forums/images/graemlins/lol.gif" alt="" /> They are built to run as or more comfortably than most cars, just keep in mind that after all it is an SUV not a regular car.
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88 red Montero with the Dakar Special Edition decals, 438,000 miles (As of 7/23/2012) some occational blue puffing but still strong and counting!!! I am going ppsshhh (turbo), Stay tuned =) ...