High mileage on a 6.6 Duramax is less about a single scary number on the odometer and more about how that number lines up with the engine’s design, maintenance history, and known weak spots. The same ...

HIGHS Factory-installed cool factor, smooth ride, now offers smooth Duramax diesel. LOWS Lacks larger tire options, awkward shift lever, not wild enough. VERDICT The ZR2's Multimatic suspension gives ...