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Dodge Viper ZB (3rd and 4th Generation)

2003–2010 · ZB · coupe

The ZB-platform Viper is the third- and fourth-generation car. ZB I (2003-2006) was a clean-sheet redesign that displaced the SR II, opening up to 8.3 liters of V10 making 500 hp and reverting to a roadster-only body before the coupe returned for 2006. ZB II (2008-2010, with no 2007 model year) refined the package: a Tremec TR6060 6-speed manual and a stroked 8.4L V10 producing 600 hp. ACR variants pushed downforce and lap times well into supercar territory. Production was paused after 2010 before the Gen 5 VX returned for 2013.

Watch out: Owner reports of catastrophic side-sill burns from the under-floor exhaust routing; mind your right leg when stepping out. Exhaust manifold cracking continues from the SR II era. The TR6060 in the ZB II is more durable than the earlier T56 but third-pedal modulation is famously abrupt and clutch wear depends heavily on driver habits. Brake rotor warping is common on track-driven cars.