7. 1974 AMC Javelin AMX
The 1974 AMC Javelin AMX was weighed down by emissions equipment that sapped its performance, disappointing muscle car fans. Resourceful owners, however, sourced performance parts from earlier AMX models—including better manifolds and carburetors—to restore lost power. These modifications not only revived the Javelin AMX’s muscle car spirit but also helped it gain a loyal following among enthusiasts. Dive deeper into its history at Hemmings.