Pretty good reason to spring for the Ultimate Driving Machine.

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But some of you will be buying new laptops this spring and summer, so here are some tips on what to look for in a machine.

WSJ: Guide to Buying a Laptop

Inside the ultraminimalist exterior lies a miraculous machine: The chassis hangs from a floating seismic platform with four-point spring suspension using a single piece of milled solid aluminum subassembly as its foundation.

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